note 35243 added to function.preg-replace
| From: | franz dot heinz at gmx dot de | Date: | Mon, 25 Aug 2003 09:42:10 +0000 |
| Subject: | note 35243 added to function.preg-replace | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-55026@lists.php.net to get a copy of this message | ||
If you use preg_replace with arrays, like this:
<?php
$string = "The order of setting the array is very important!";
$pattern=array();
$replacement=array();
$pattern[0] = "/The/";
$pattern[1] = "/order/";
$pattern[2] = "/of/";
$pattern[3] = "/setting/";
$pattern[4] = "/the/";
$pattern[5] = "/array/";
$pattern[6] = "/is/";
$replacement[0] = "tHE";
$replacement[1] = "ORDER";
$replacement[2] = "OF";
$replacement[3] = "SETTING";
$replacement[4] = "THE";
$replacement[5] = "ARRAY";
$replacement[6] = "IS";
echo preg_replace($pattern, $replacement, $string);
?>
It gives you your string in the "right order":
"tHE ORDER OF SETTING THE ARRAY IS very important!"
But if you define your array in an other order, for example like this:
<?php
$string = "The order of setting the array is very important!";
$pattern=array();
$replacement=array();
$pattern[1] = "/order/";
$pattern[2] = "/of/";
$pattern[0] = "/The/";
$pattern[3] = "/setting/";
$pattern[4] = "/the/";
$pattern[5] = "/array/";
$pattern[6] = "/is/";
$replacement[5] = "ARRAY";
$replacement[1] = "ORDER";
$replacement[2] = "OF";
$replacement[0] = "tHE";
$replacement[3] = "SETTING";
$replacement[4] = "THE";
$replacement[6] = "IS";
echo preg_replace($pattern, $replacement, $string);
?>
The String is given you in the "false order":
"OF ARRAY ORDER tHE SETTING THE IS very important!"
It seems, that preg_replace uses the "setting-order" instead of the
"index-order" of the array.
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Manual Page -- http://www.php.net/manual/en/function.preg-replace.php
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