If you want a function to return all text in a string up to the Nth occurrence of a substring, try the below function.
Works in PHP >= 5.
(Pommef provided another sample function for this purpose below, but I believe it is incorrect.)
<?php
// Returns all of $haystack up to (but excluding) the $n_occurrence occurrence of $needle. Therefore:
// If there are < $n_occurrence occurrences of $needle in $haystack, the entire string will be returned.
// If there are >= $n_occurrence occurrences of $needle in $haystack, the returned string will end before the $n_occurrence'th needle.
// This function only makes sense for $n_occurrence >= 1
function nsubstr($needle, $haystack, $n_occurrence)
{
// After exploding by $needle, every entry in $arr except (possibly) part of the last entry should have its content returned.
$arr = explode($needle,$haystack,$n_occurrence);
// Examine last entry in $arr. If it contains $needle, cut out all text except for the text before $needle.
$last = count($arr) - 1;
$pos_in_last = strpos($arr[$last],$needle);
if ($pos_in_last !== false)
$arr[$last] = substr($arr[$last],0,$pos_in_last);
return implode($needle,$arr);
}
$string = 'd24jkdslgjldk2424jgklsjg24jskgldjk24';
print 'S: ' . $string . '<br>';
print '1: ' . nsubstr('24',$string,1) . '<br>';
print '2: ' . nsubstr('24',$string,2) . '<br>';
print '3: ' . nsubstr('24',$string,3) . '<br>';
print '4: ' . nsubstr('24',$string,4) . '<br>';
print '5: ' . nsubstr('24',$string,5) . '<br>';
print '6: ' . nsubstr('24',$string,6) . '<br>';
print '7: ' . nsubstr('24',$string,7) . '<br>';
/*
// prints:
S: d24jkdslgjldk2424jgklsjg24jskgldjk24
1: d
2: d24jkdslgjldk
3: d24jkdslgjldk24
4: d24jkdslgjldk2424jgklsjg
5: d24jkdslgjldk2424jgklsjg24jskgldjk
6: d24jkdslgjldk2424jgklsjg24jskgldjk24
7: d24jkdslgjldk2424jgklsjg24jskgldjk24
*/
?>
Note that this function can be combined with wordwrap() to accomplish a routine but fairly difficult web design goal, namely, limiting inline HTML text to a certain number of lines. wordwrap() can break your string using <br>, and then you can use this function to only return text up to the N'th <br>.
You will still have to make a conservative guess of the max number of characters per line with wordwrap(), but you can be more precise than if you were simply truncating a multiple-line string with substr().
See example:
<?php
$text = 'Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Pellentesque id massa. Duis sollicitudin ipsum vel diam. Aliquam pulvinar sagittis felis. Nullam hendrerit semper elit. Donec convallis mollis risus. Cras blandit mollis turpis. Vivamus facilisis, sapien at tincidunt accumsan, arcu dolor suscipit sem, tristique convallis ante ante id diam. Curabitur mollis, lacus vel gravida accumsan, enim quam condimentum est, vitae rutrum neque magna ac enim.';
$wrapped_text = wordwrap($text,100,'<br>',true);
$three_lines = nsubstr('<br>',$wrapped_text,3);
print '<br><br>' . $three_lines;
$four_lines = nsubstr('<br>',$wrapped_text,4);
print '<br><br>' . $four_lines;
/*
prints:
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Pellentesque id massa. Duis sollicitudin
ipsum vel diam. Aliquam pulvinar sagittis felis. Nullam hendrerit semper elit. Donec convallis
mollis risus. Cras blandit mollis turpis. Vivamus facilisis, sapien at tincidunt accumsan, arcu
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Pellentesque id massa. Duis sollicitudin
ipsum vel diam. Aliquam pulvinar sagittis felis. Nullam hendrerit semper elit. Donec convallis
mollis risus. Cras blandit mollis turpis. Vivamus facilisis, sapien at tincidunt accumsan, arcu
dolor suscipit sem, tristique convallis ante ante id diam. Curabitur mollis, lacus vel gravida
*/
?>
String functions
Introductie
Al deze functies manipuleren strings op verschillende manieren. Meer specifieke functies kunnen worden gevonden in de regular expression en URL handling secties van deze handleiding.
Voor informatie over hoe strings zich gedragen, vooral met betrekking tot het gebruik van enkele quotes, dubbele quotes en escape sequences, zie de Strings entry in de Types sectie van de manual.
Afhankelijkheden
Deze functies zijn beschikbaar als onderdeel van de standaard module die altijd beschikbaar is.
Installatie
Er zijn geen handelingen nodig m.b.t. tot installatie voor deze functies, deze maken deel uit van de kern van PHP.
Voorgedefinieerde constanten
Deze extensie definieert geen constanten.
Zie ook
Voor nog krachtigere manieren om strings te gebruiken en te manipuleren zie ook de POSIX regular expression functies en de Perl compatible regular expression functies.
Table of Contents
- AddCSlashes — Quote string met slashes in de C stijl
- AddSlashes — Quote string met slashes
- bin2hex — Converteert binaire data naar hexadecimaal formaat
- chop — Verwijdert achteraankomende whitespace
- chr — Geeft een specific character weer
- chunk_split — Split een string in kleinere stukjes
- convert_cyr_string — Converteert van de ene Cyrillische karakter set naar de andere.
- convert_uudecode — Decode a uuencoded string
- convert_uuencode — Uuencode a string
- count_chars — Geeft informatie over karakters die in een string gebruikt worden
- crc32 — Berekent de crc32 polynoom van een string
- crypt — DES-encrypt een string
- echo — Output een of meerdere strings
- explode — Split een string door string
- fprintf — Write a formatted string to a stream
- get_html_translation_table — Geeft een vertalingstabel weer die gebruikt wordt bij htmlspecialchars en htmlentities
- hebrev — Converteert logische Hebreeuwse tekst naar visuele tekst
- hebrevc — Converteert logische Hebreeuwse tekst naar visuele tekst met newline conversie
- html_entity_decode — Convert all HTML entities to their applicable characters
- htmlentities — Converteert alle van toepassing zijnde karakters naar HTML entities
- htmlspecialchars_decode — Convert special HTML entities back to characters
- htmlspecialchars — Converteert speciala karakters naar HTML entities
- implode — Voeg array elementen samen met een string
- join — Voeg array elements samen met een string
- levenshtein — Berekent de Levenshtein afstand tussen twee strings
- localeconv — Verkrijg numieke formatting informatie
- ltrim — Verwijdert whitespace van het begin van een string
- md5_file — Berekent de md5 hash van een bestand
- md5 — Berekent de md5 hash van een string
- metaphone — Berekent de metaphone key van een string
- money_format — Formats a number as a currency string
- nl_langinfo — Vraag language en locale informatie op
- nl2br — Converteert newlines naar HTML line breaks
- number_format — Format a number with grouped thousands
- ord — Geeft ASCII waarde van karakter
- parse_str — Parset de string in variabelen
- print — Output een string
- printf — Output een geformatteerde string
- quoted_printable_decode — Converteert een quoted-printable string naar een 8 bit string
- quotemeta — Quote meta characters
- rtrim — Verwijdert whitespace van het eind van een string
- setlocale — Definieer locale informatie
- sha1_file — Calculate the sha1 hash of a file
- sha1 — Calculate the sha1 hash of a string
- similar_text — Berekent de overeenkomsten tussen 2 strings
- soundex — Berekent de soundex key van een string
- sprintf — Geeft een geformatteerde string weer
- sscanf — Parset input van een string volgens een format
- str_getcsv — Parse a CSV string into an array
- str_ireplace — Case-insensitive version of str_replace.
- str_pad — Vul een string naar een bepaalde lengte aan met een andere string
- str_repeat — Herhaalt een string
- str_replace — Vervang alle voorkomens van needle in haystack met str
- str_rot13 — Voer rot13 transformatie uit op een string
- str_shuffle — Randomly shuffles a string
- str_split — Convert a string to an array
- str_word_count — Return information about words used in a string
- strcasecmp — Binary safe hoofdletter ongevoelige string vergelijking
- strchr — Vind de eerst voorkomende positie van een karakter
- strcmp — Binary safe string vergelijking
- strcoll — Locale gebaseerde string vergelijking
- strcspn — Vind de lengte van een initieel segment die niet aan de mask voldoet
- strip_tags — Strip HTML en PHP tags van een string
- stripcslashes — Un-quote een string quoted met addcslashes
- stripos — Find position of first occurrence of a case-insensitive string
- stripslashes — Un-quote een string quoted met addslashes
- stristr — Hoofdletter-ongevoelige strstr
- strlen — Haal string lengte op
- strnatcasecmp — Hoofdletter ongevoelige string vergelijking gebruik makend van een "natural order" algoritme
- strnatcmp — String vergelijking gebruikmakend van een "natural order" algoritme
- strncasecmp — Binary safe case-insensitive string comparison of the first n characters
- strncmp — Binary safe string vergelijking van de eerste n karakters
- strpbrk — Search a string for any of a set of characters
- strpos — Vindt de positie van het eerste voorkomen van een string
- strrchr — Vindt de positie van het laatste voorkomen van een string
- strrev — Draait een string om
- strripos — Find position of last occurrence of a case-insensitive string in a string
- strrpos — Vindt de positie van het laatste voorkomen van een karakter in een string
- strspn — Vindt de lengte van een initieel segment invoermasker
- strstr — Vindt eerste voorkomen van een string
- strtok — Verdeelt string in tokens
- strtolower — Maak een string volledig in kleine letters
- strtoupper — Maak een string volledig in hoofdletters
- strtr — Vertaal bepaalde karaketers
- substr_compare — Binary safe comparison of 2 strings from an offset, up to length characters
- substr_count — Telt het aantal substrings in een string
- substr_replace — Vervangt tekst in een gedeelte van een string
- substr — Geeft gedeelte van een string
- trim — Verwijdert whitespace van het begin en eind van een string
- ucfirst — Maakt van het eerste karakter van een string een hoofdletter
- ucwords — Maakt van het eerste karakter van elk woord in een string een hoofdletter
- vfprintf — Write a formatted string to a stream
- vprintf — Output een string
- vsprintf — Geef een string terug
- wordwrap — Wrapt een string tot een gegeven aantal karakters gebruikmakend van een string break karakter.
Strings
20-Nov-2008 01:33
04-Aug-2008 11:10
In reference to Moe... best random string function
<?php
function random_string($l = 10){
$c = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxwz0123456789";
for(;$l > 0;$l--) $s .= $c{rand(0,strlen($c))};
return str_shuffle($s);
}
?>
28-Mar-2008 10:43
If you want to indent a block of text with $level tabs, you can use
function str_indent($level, $text) {
return str_repeat("\t", $level).str_replace("\n", "\n".str_repeat("\t", $level), $text);
}
20-Mar-2008 02:06
Just a note in regards to bloopletech a few posts down:
The word "and" should not be used when converting numbers to text. "And" (at least in US English) should only be used to indicate the decimal place.
Example:
1,796,706 => one million, seven hundred ninety-six thousand, seven hundred six.
594,359.34 => five hundred ninety four thousand, three hundred fifty nine and thirty four hundredths
07-Jan-2008 11:18
This took me quite some time to figure out and it is so obvious. So, I hope it helps someone out there like it would have helped me if I would have found it on this page:
I wanted to read a binary file and write it out with some modified bytes with their hex values. The easiest way I could come up with was the following:
read the file line by line, e.g. 400 bytes and then chuck it into an array with e.g.
<?php
$handle = @fopen("/path/to/file.bin", "r");
if ($handle) {
while (!feof($handle)) {
$buffer[] = fgets($handle, 400);
}
fclose($handle);
$buffer[0][0] = chr(hexdec("FF")); // set the first byte to 0xFF
}
// write out the file from the array ...
?>
One could write a function for that, so that One can write a string of bytes. Don't have time for this now but you should get the idea.
27-Jul-2007 12:10
Regarding the code for the function beginsWith($str, $sub), I found that it has problems when only one character is present after the string searched for. I found that this works better instead:
<?php
function beginsWith($str, $sub) {
return (strncmp($str, $sub, strlen($sub)) == 0);
}
?>
10-Jul-2007 01:44
In responce to mike here is a better random string function
<?php
function random_string($max = 20){
$chars = "abcdefghijklmnopqrstuvwxwz0123456789_";
for($i = 0; $i < $max; $i++){
$rand_key = mt_rand(0, strlen($chars));
$string .= substr($chars, $rand_key, 1);
}
return str_shuffle($string);
}
?>
18-Jun-2007 12:59
Here is a truly random string generator it uses the most common string functions it will work on anywhere.
<?php
function random_string($max = 20){
$chars = explode(" ", "a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9");
for($i = 0; $i < $max; $i++){
$rnd = array_rand($chars);
$rtn .= base64_encode(md5($chars[$rnd]));
}
return substr(str_shuffle(strtolower($rtn)), 0, $max);
}
?>
23-May-2007 01:05
[Editor's Note: Remember that number names are locale-specific. Thus in the US 1,000,000,000 is called a billion, while in other countries this might be different (ie. miljard in Dutch). This function provides support only for the US locale]
If you want to convert a number, (int or float) to full spoken text, then you can use my num2text converter, at http://bloople.net/num2text
Examples:
40000 => forty thousand
1,796,706 => one million, seven hundred and ninety-six thousand, seven hundred and six.
If works for positive an negative integers/floats/doubles. The code is only a page long, and you don't have to install any modules or anything.
I hope this comes in handy for somebody!
26-Mar-2007 12:23
An update to admin at fivestarbuy dot com's StrParse. Since php5.2.x the occurance of an object in the vardata will cause a "Catchable fatal error". Previously it has failed silently, so I added nullification of present objects.
I also updated comments to be more specific, I hope that's ok with you, admin at fivestarbuy dot com:
<?php
function StrParse($str,$vardata) {
# Variables present in $str is replaced by values of variables in $vardata
# typical use:
# $vardata = get_defined_vars();
# $str = some template code with variables present.
# uncomment the echo line to debug.
$getvarkeys=array_keys($vardata);
$ret=$str;
for ($x=0; $x < count($getvarkeys); $x++) {
$myvar=$getvarkeys[$x];
if(is_object($vardata[$myvar])) $vardata[$myvar] = null;
#echo "Variable: " . $myvar . " [" . $vardata[$myvar] . "]<br>";
$ret=str_replace('$' . $myvar, $vardata[$myvar], $ret);
}
return $ret;
}
?>
02-Aug-2006 06:00
Well for you egold users out ther I wrote this to just return the balance ONLY
If anyone knows a better way to write this lemme know as im a novice
function _GetBalance($from, $frompass) {
$defined_vars = get_defined_vars();
$_url = 'https://www.e-gold.com/acct/balance.asp';
$_url_p = "AccountID=" . $from . "&PassPhrase=" . $frompass ."";
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS,$_url_p);
curl_setopt($ch, CURLOPT_URL,$_url);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_USERAGENT, $defined_vars['HTTP_USER_AGENT']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
$content = curl_exec ($ch);
curl_close ($ch);
$content=strtolower($content);
$content=strstr($content,"</select></font></th></form></tr>");
$content=strip_tags($content);
$content=strrev($content);
$content=strstr($content,"eseht :eton");
$content=str_replace("eseht :eton","",$content);
$content=ltrim($content);
$content=rtrim($content);
$content=substr($content,0,11);
$content=strrev($content);
$content=ltrim($content);
return $content;
}
30-Jul-2006 10:16
Here's an easier way to find nth...
function nth($numbex){
if ($numbex%10 == 1 && $numbex%100 != 11) $sth='st';
elseif ($numbex%10 == 2 && $numbex%100 != 12) $sth='nd';
elseif ($numbex%10 == 3 && $numbex%100 != 13) $sth='rd';
else $sth = 'th';
return $sth;
}
there is is no need to check if the user has entered a non-integer as we may be using this function for expressing variables as well eg. ith value of x , nth root of z ,etc...
27-Jul-2006 03:17
I think that
administrador(ensaimada)sphoera(punt)com's function is
too complicated. It's easier with regular expressions.
So I made this function, it isn't really the same,
it's even better because it returns an array with all the
matches found
If there are no matches, false is returned.
<?php
// bool/array str_between( string str, string
start_str, string end_str )
function str_between($str,$start,$end) {
if (preg_match_all('/' . preg_quote($start) . '(.*?)' . preg_quote($end) . '/',$str,$matches)) {
return $matches[1];
}
// no matches
return false;
}
?>
Enjoy
19-Jul-2006 05:52
Sometimes when converting integers to strings, it looks better to have the number spelled out. I wrote this function that converts integers from -999 to 999 into spelled out strings:
function int2str($int=0){
$doOnes=true;
$neg=$int<0?true:false;
$int=abs(round($int));
$str='';
switch(strlen($int)){
case 1:$int='0'.$int;
case 2:$int='0'.$int;
case 3:$int.='';break;
default:return $int;
}
switch($int{0}){
case 1:$str.='one-hundred-';break;
case 2:$str.='two-hundred-';break;
case 3:$str.='three-hundred-';break;
case 4:$str.='four-hundred-';break;
case 5:$str.='five-hundred-';break;
case 6:$str.='six-hundred-';break;
case 7:$str.='seven-hundred-';break;
case 8:$str.='eight-hundred-';break;
case 9:$str.='nine-hundred-';break;
}
switch($int{1}){
case 1:
switch($int{2}){
case 0:$str.='ten-';break;
case 1:$str.='eleven-';break;
case 2:$str.='twelve-';break;
case 3:$str.='thirteen-';break;
case 4:$str.='fourteen-';break;
case 5:$str.='fifteen-';break;
case 6:$str.='sixteen-';break;
case 7:$str.='seventeen-';break;
case 8:$str.='eighteen-';break;
case 9:$str.='nineteen-';break;
}
$doOnes=false;
break;
case 2:$str.='twenty-';break;
case 3:$str.='thirty-';break;
case 4:$str.='forty-';break;
case 5:$str.='fifty-';break;
case 6:$str.='sixty-';break;
case 7:$str.='seventy-';break;
case 8:$str.='eighty-';break;
case 9:$str.='ninety-';break;
}
if($doOnes){
switch($int{2}){
case 1:$str.='one-';break;
case 2:$str.='two-';break;
case 3:$str.='three-';break;
case 4:$str.='four-';break;
case 5:$str.='five-';break;
case 6:$str.='six-';break;
case 7:$str.='seven-';break;
case 8:$str.='eight-';break;
case 9:$str.='nine-';break;
}}
$str=substr($str,0,-1);
if($neg){
$str='negative '.$str;
}
if($int=='000'){
$str='zero';
}
return $str;
}
Hope this helps someone,
-Blayde
19-Jul-2006 07:01
In responce to James Baker's sencence case function.
Great function however i would make one slight variation being that it doesn't take into account the fact that a capital is required after a new paragraph so i modified it to check for /r and /n as follows:
<?PHP
/*/ Author : James Baker /*/
function sentenceCase($s){
$str = strtolower($s);
$cap = true;
for($x = 0; $x < strlen($str); $x++){
$letter = substr($str, $x, 1);
if($letter == "." || $letter == "!" || $letter == "?" || $letter == "\n" || $letter == "\r"){
$cap = true;
}elseif($letter != " " && $cap == true){
$letter = strtoupper($letter);
$cap = false;
}
$ret .= $letter;
}
return $ret;
}
?>
02-Mar-2006 02:10
I've prepared this simple function to obtain a string delimited between tags (not only XML tags!). Anybody needs something like this?.
<?php
function get_string_between($string, $start, $end){
$string = " ".$string;
$ini = strpos($string,$start);
if ($ini == 0) return "";
$ini += strlen($start);
$len = strpos($string,$end,$ini) - $ini;
return substr($string,$ini,$len);
}
$string = "this [custom] function is useless!!";
echo get_string_between($string,"[","]");
// must return "custom";
?>
more functions at http://www.sphoera.com
24-Feb-2006 07:00
The functions below:
function beginsWith( $str, $sub )
function endsWith( $str, $sub )
Are correct, but flawed. You'd need to use the === operator instead:
function beginsWith( $str, $sub ) {
return ( substr( $str, 0, strlen( $sub ) ) === $sub );
}
function endsWith( $str, $sub ) {
return ( substr( $str, strlen( $str ) - strlen( $sub ) ) === $sub );
}
Otherwise, endsWith would return "foobar.0" ends with ".0" as well as "0" or "00" or any amount of zeros because numerically .0 does equal 0.
21-Dec-2005 02:24
stripos for PHP4.x
<?php
function stripos($haystack,$needle) {
return strpos(strtoupper($haystack),strtoupper($needle));
}
?>
11-Dec-2005 04:58
I needed str2bin() function for one of my project, so if some one else is want to use it, have fun :)
<?php
/**
* Returns an ASCII string containing
* the binary representation of the input data .
**/
function str2bin($str, $mode=0) {
$out = false;
for($a=0; $a < strlen($str); $a++) {
$dec = ord(substr($str,$a,1));
$bin = '';
for($i=7; $i>=0; $i--) {
if ( $dec >= pow(2, $i) ) {
$bin .= "1";
$dec -= pow(2, $i);
} else {
$bin .= "0";
}
}
/* Default-mode */
if ( $mode == 0 ) $out .= $bin;
/* Human-mode (easy to read) */
if ( $mode == 1 ) $out .= $bin . " ";
/* Array-mode (easy to use) */
if ( $mode == 2 ) $out[$a] = $bin;
}
return $out;
}
?>
21-Oct-2005 04:18
This example lets you parse an unparsed strings variables. Warning: This could cause security leaks if you allow users to pass $variables through this engine. I recommend only using this for your Content Management System.
<?
$mytime=time();
$mydog="My Dog Ate My PHP!";
# Your Parsing String:
$s1 = 'Hyphen Variable Preserving: $mytime, and $mydog';
echo "Before: <br><br>$s1<br><br>";
# Remember, wherever you define this, it will not be defined GLOBAL into the function
# which is why we define it here. Defining it global could lead to security issues.
$vardata=get_defined_vars();
# Parse the string
$s1 = StrParse($s1,$vardata);
echo "After: <br><br>$s1";
function StrParse($str,$vardata) {
# Takes a string, or piece of data, that contains PHP Variables
# For example, unparsed variables like: Test using time: $mytime
# This example shows $mytime, and not the actual variable value.
# The end result shows the actual variable value of $mytime.
# This is useful for building a content management system,
# and directing your variables into your content data,
# where content is stored in a file or database, unparsed.
# Of course this could slow down page loads, but it's a good way
# to parse data from current variables into your loaded new data
# making it compatible.
# Then the variables are replaced with the actual variable..
$getvarkeys=array_keys($vardata);
$ret=$str;
for ($x=0; $x < count($getvarkeys); $x++) {
$myvar=$getvarkeys[$x];
#echo "Variable: " . $myvar . " [" . $vardata[$myvar] . "]<br>";
$ret=str_replace('$' . $myvar, $vardata[$myvar], $ret);
}
return $ret;
}
?>
to: james dot d dot baker at gmail dot com
PHP has a builtin function for doing what your function does,
http://php.net/ucfirst
http://php.net/ucwords
Updated; used to test for input as an array, should have been a string, added some validation of the input while I was at it. Enjoy.
<?php
/*---------- Directory Tree to Array ----------//
Takes base directory, returns an associative array
containing each directory name as an associative key
and each file as an indexed entry in the appropriate
directory.
If no path is provided, it uses the current directory
If $style == 1, it will return a sorted, non-associative
array
By Peter Dolan
www.peterd.net
Updated 2005-10-12
Use it as much as you like for whatever
For my own entertainment, please let me know if you do
//-----------------------------------------------------------*/
function dirTreeToArray( $path = "./", $style="0" ) {
if ( !is_string($path) or !($style==0 or $style==1) ) die("Improper arguments in function dirTreeToArray(string \$path, \$style = {0, 1})");
else {
$path = trim($path);
$path = str_replace("\\", "/", $path);
if( '/' == $path{strlen($path)-1} || '\'' == $path{strlen($path)-1} ) $path = substr($path, 0, strlen($path)-1);
}
$tree = array();
$arrayPointer = & $tree;
if ( $handle = opendir($path) ) {
while ( $fileName = readdir($handle) ) {
if ( $fileName != "." and $fileName != ".." ) {
$newPath = "$path/$fileName"; // Used for testing directory or file property
if ( is_dir($newPath) ) {
$dummyPointer = & $arrayPointer; // Save the current pointer
if ( $style == 0 ) $arrayPointer = & $arrayPointer[$fileName]; // Drop the pointer into a subdirectory
elseif ( $style == 1 ) $arrayPointer = & $arrayPointer[]; // Drop the pointer into a subdirectory
$arrayPointer = dirTreeToArray($newPath, $style); // Process the new subdirectory
if ( $style == 1 ) sort($arrayPointer); // Sort it if we're in a non-associative mode
$arrayPointer = & $dummyPointer; // Bring the pointer back up a level
}
elseif ( is_file($newPath) ) $arrayPointer[] = $fileName; // Enter the files
}
}
return $tree;
}
else die("Failed to open directory $path in function dirTreeToArray(string \$path, \$style = {0, 1})");
}
?>
13-Oct-2005 08:32
--Convert MSWord Quotes--
Use this before any conversion to HTML entities or characters to clean up a form entry cut and pasted from MSWord.
function fixword($scratch)
{
$start=chr(226).chr(128);
$word=array();$fixword=array();
$word[]=$start.chr(152);$fixword[]="'";
$word[]=$start.chr(153);$fixword[]="'";
$word[]=$start.chr(156);$fixword[]="\"";
$word[]=$start.chr(157);$fixword[]="\"";
return str_replace($word, $fixword, $scratch);
}
13-Aug-2005 11:40
A comprehensive concatenation function, that works with array and strings
<?php
function str_cat() {
$args = func_get_args() ;
// Asserts that every array given as argument is $dim-size.
// Keys in arrays are stripped off.
// If no array is found, $dim stays unset.
foreach($args as $key => $arg) {
if(is_array($arg)) {
if(!isset($dim))
$dim = count($arg) ;
elseif($dim != count($arg))
return FALSE ;
$args[$key] = array_values($arg) ;
}
}
// Concatenation
if(isset($dim)) {
$result = array() ;
for($i=0;$i<$dim;$i++) {
$result[$i] = '' ;
foreach($args as $arg)
$result[$i] .= ( is_array($arg) ? $arg[$i] : $arg ) ;
}
return $result ;
} else {
return implode($args) ;
}
}
?>
A simple example :
<?php
str_cat(array(1,2,3), '-', array('foo' => 'foo', 'bar' => 'bar', 'noop' => 'noop')) ;
?>
will return :
Array (
[0] => 1-foo
[1] => 2-bar
[2] => 3-noop
)
More usefull :
<?php
$myget = $_GET ; // retrieving previous $_GET values
$myget['foo'] = 'b a r' ; // changing one value
$myget = str_cat(array_keys($myget), '=', array_map('rawurlencode', array_values($myget))) ;
$querystring = implode(ini_get('arg_separator.output'), $myget)) ;
?>
will return a valid querystring with some values changed.
Note that <?php str_cat('foo', '&', 'bar') ; ?> will return 'foo&bar', while <?php str_cat(array('foo'), '&', 'bar') ; ?> will return array(0 => foo&bar)
14-Jun-2005 05:38
to kristin at greenaple dot on dot ca:
thanx for sharing.
your function in recursive form proved to be slightly faster and it returns false (as it should) when the character is not found instead of number 0:
<?php
function strnposr($haystack, $needle, $occurance, $pos = 0) {
return ($occurance<2)?strpos($haystack, $needle, $pos):strnposr($haystack,$needle,$occurance-1,strpos($haystack, $needle, $pos) + 1);
}
?>
05-Jun-2005 06:41
<?php
/**
Utility class: static methods for cleaning & escaping untrusted (i.e.
user-supplied) strings.
Any string can (usually) be thought of as being in one of these 'modes':
pure = what the user actually typed / what you want to see on the page /
what is actually stored in the DB
gpc = incoming GET, POST or COOKIE data
sql = escaped for passing safely to RDBMS via SQL (also, data from DB
queries and file reads if you have magic_quotes_runtime on--which
is rare)
html = safe for html display (htmlentities applied)
Always knowing what mode your string is in--using these methods to
convert between modes--will prevent SQL injection and cross-site scripting.
This class refers to its own namespace (so it can work in PHP 4--there is no
self keyword until PHP 5). Do not change the name of the class w/o changing
all the internal references.
Example usage: a POST value that you want to query with:
$username = Str::gpc2sql($_POST['username']);
*/
//This sets SQL escaping to use slashes; for Sybase(/MSSQL)-style escaping
// ( ' --> '' ), set to true.
define('STR_SYBASE', false);
class Str {
function gpc2sql($gpc, $maxLength = false)
{
return Str::pure2sql(Str::gpc2pure($gpc), $maxLength);
}
function gpc2html($gpc, $maxLength = false)
{
return Str::pure2html(Str::gpc2pure($gpc), $maxLength);
}
function gpc2pure($gpc)
{
if (ini_get('magic_quotes_sybase'))
$pure = str_replace("''", "'", $gpc);
else $pure = get_magic_quotes_gpc() ? stripslashes($gpc) : $gpc;
return $pure;
}
function html2pure($html)
{
return html_entity_decode($html);
}
function html2sql($html, $maxLength = false)
{
return Str::pure2sql(Str::html2pure($html), $maxLength);
}
function pure2html($pure, $maxLength = false)
{
return $maxLength ? htmlentities(substr($pure, 0, $maxLength))
: htmlentities($pure);
}
function pure2sql($pure, $maxLength = false)
{
if ($maxLength) $pure = substr($pure, 0, $maxLength);
return (STR_SYBASE)
? str_replace("'", "''", $pure)
: addslashes($pure);
}
function sql2html($sql, $maxLength = false)
{
$pure = Str::sql2pure($sql);
if ($maxLength) $pure = substr($pure, 0, $maxLength);
return Str::pure2html($pure);
}
function sql2pure($sql)
{
return (STR_SYBASE)
? str_replace("''", "'", $sql)
: stripslashes($sql);
}
}
?>
27-May-2005 05:45
<?php
/*
Written By James Baker, May 27th 2005
sentenceCase($string);
$string: The string to convert to sentence case.
Converts a string into proper sentence case (First letter of each sentance capital, all the others smaller)
Example Usage:
echo sentenceCase("HELLO WORLD!!! THIS IS A CAPITALISED SENTENCE. this isn't.");
Returns:
Hello world!!! This is a capitalised sentence. This isn't.
*/
function sentenceCase($s){
$str = strtolower($s);
$cap = true;
for($x = 0; $x < strlen($str); $x++){
$letter = substr($str, $x, 1);
if($letter == "." || $letter == "!" || $letter == "?"){
$cap = true;
}elseif($letter != " " && $cap == true){
$letter = strtoupper($letter);
$cap = false;
}
$ret .= $letter;
}
return $ret;
}
?>
26-Apr-2005 01:34
<?php
/*
* str_match
*
* return a string with only cacacteres defined in a expression return false if the expression is not valid
*
* @param $str string the string
* @param $match the expression based on the class definition off a PCRE regular expression.
* the '[', ']', '\' and '^' at class start need to be escaped.
* like : -a-z0-9_@.
*/
function str_match( $str, $match )
{
$return = '';
if( eregi( '(.*)', $match, $class ) )
{
$match = '['.$regs[1].']';
for( $i=0; $i<strlen($str); $i++ )
if( ereg( '['.$class[1].']', $str[$i] ) )
$return .= $str{$i};
return $return;
}
else return false;
}
/*
* example
* accept only alphanum caracteres from the GET/POST parameters 'a'
*/
if( ! empty($_REQUEST['a']) )
$_REQUEST['a'] = str_match( $_REQUEST['a'], 'a-zA-Z0-9' );
else
$_REQUEST['a'] = 'default';
?>
19-Mar-2005 09:15
Example: Give me everything up to the fourth occurance of '/'.
<?php
$haystack = "/home/username/www/index.php";
$needle = "/";
function strnpos($haystack, $needle, $occurance, $pos = 0) {
$res = implode($needle,$haystack);
$res = array_slice($res, $pos, $occurance);
return explode ($needle,$res);
}
?>
02-Jan-2005 04:32
I really searched for a function that would do this as I've seen it in other languages but I couldn't find it here. This is particularily useful when combined with substr() to take the first part of a string up to a certain point.
strnpos() - Find the nth position of needle in haystack.
<?php
function strnpos($haystack, $needle, $occurance, $pos = 0) {
for ($i = 1; $i <= $occurance; $i++) {
$pos = strpos($haystack, $needle, $pos) + 1;
}
return $pos - 1;
}
?>
Example: Give me everything up to the fourth occurance of '/'.
<?php
$haystack = "/home/username/www/index.php";
$needle = "/";
$root_dir = substr($haystack, 0, strnpos($haystack, $needle, 4));
echo $root_dir;
?>
Returns: /home/username/www
Use this example with the server variable $_SERVER['SCRIPT_NAME'] as the haystack and you can self-discover a document's root directory for the purposes of locating global files automatically!
In response to hackajar <matt> yahoo <trot> com,
No string-to-array function exists because it is not needed. If you reference a string with an offset like you do with an array, the character at that offset will be return. This is documented in section III.11's "Strings" article under the "String access and modification by character" heading.
09-Nov-2004 10:54
I use these little doo-dads quite a bit. I just thought I'd share them and maybe save someone a little time. No biggy. :)
// returns true if $str begins with $sub
function beginsWith( $str, $sub ) {
return ( substr( $str, 0, strlen( $sub ) ) == $sub );
}
// return tru if $str ends with $sub
function endsWith( $str, $sub ) {
return ( substr( $str, strlen( $str ) - strlen( $sub ) ) == $sub );
}
// trims off x chars from the front of a string
// or the matching string in $off is trimmed off
function trimOffFront( $off, $str ) {
if( is_numeric( $off ) )
return substr( $str, $off );
else
return substr( $str, strlen( $off ) );
}
// trims off x chars from the end of a string
// or the matching string in $off is trimmed off
function trimOffEnd( $off, $str ) {
if( is_numeric( $off ) )
return substr( $str, 0, strlen( $str ) - $off );
else
return substr( $str, 0, strlen( $str ) - strlen( $off ) );
}
27-Oct-2004 07:29
//
// string strtrmvistl( string str, [int maxlen = 64],
// [bool right_justify = false],
// [string delimter = "<br>\n"])
//
// splits a long string into two chunks (a start and an end chunk)
// of a given maximum length and seperates them by a given delimeter.
// a second chunk can be right-justified within maxlen.
// may be used to 'spread' a string over two lines.
//
function strtrmvistl($str, $maxlen = 64, $right_justify = false, $delimter = "<br>\n") {
if(($len = strlen($str = chop($str))) > ($maxlen = max($maxlen, 12))) {
$newstr = substr($str, 0, $maxlen - 3);
if($len > ($maxlen - 3)) {
$endlen = min(($len - strlen($newstr)), $maxlen - 3);
$newstr .= "..." . $delimter;
if($right_justify)
$newstr .= str_pad('', $maxlen - $endlen - 3, ' ');
$newstr .= "..." . substr($str, $len - $endlen);
}
return($newstr);
}
return($str);
}
12-Aug-2004 05:52
Here's a simpler "simplest" way to toggle through a set of 1..n colors for web backgrounds:
<?php
$colours = array('#000000', '#808080', '#A0A0A0', '#FFFFFF');
// Get a colour
$color = next($colors) or $color = reset($colors);
?>
The code doesn't need to know anything about the number of elements being cycled through. That way you won't have to tracking down all the code when changing the number of colors or the color values.
