#21816 [Bgs->Asn]: preg_replace has problem with arrays
| From: | pollita@php.net | Date: | Wed, 22 Jan 2003 21:30:11 +0000 |
| Subject: | #21816 [Bgs->Asn]: preg_replace has problem with arrays | ||
| References: | 1 | Groups: | php.doc |
| Request: | Send a blank email to phpdoc+get-969351187@lists.php.net to get a copy of this message | ||
ID: 21816
Updated by: pollita@php.net
Reported By: grischa.toedt@web.de
-Status: Bogus
+Status: Assigned
-Bug Type: *Regular Expressions
+Bug Type: Documentation problem
Operating System: Windows XP
PHP Version: 4.3.0
-Assigned To:
+Assigned To: pollita
New Comment:
This could be made more clear in the manual. I'll add a note and an
example tonight.
Previous Comments:
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[2003-01-22 14:52:19] iliaa@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
The replacment is done in the order the array was created, if you want
it to be done based on array keys that run an appropriate sorting
function before executing the preg_replace function.
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[2003-01-22 12:14:45] michael.mauch@gmx.de
The search strings used in the preg_replace() function are regular
expressions. "[abc]" is a regular expression which matches any of the
characters "a", "b" or "c".
Either use str_replace() to replace your strings, or learn to use
regular expressions
<http://de3.php.net/manual/en/pcre.pattern.syntax.php>.
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[2003-01-22 08:41:20] grischa.toedt@web.de
<?php
// Hi, while using the following code i experienced
// an interesting behaviour of preg_replace():
$string = "Say a [word0] about [word1] and [word2]";
$search[0] ="[word0]";
$search[1]= "[word1]";
$search[2]= "[word2]";
$replace[0]="betterWord0";
$replace[2]="betterWord2";
$replace[1]="betterWord1";
$string2 = preg_replace($search,$replace,$string);
echo "Result is:<BR>" . $string2;
echo "<BR><BR>Result should be:<BR> Say a [betterWord0] about
[betterWord1] and [betterWord2]";
// result should be:
//Say a [betterWord0] about [betterWord1] and [betterWord2]
//
// but produces:
//Say a [betterWord0] about [betterWord2] and [betterWord1]
//
// Seems like the order in which i build my array
// is the order for replacing...and not the index
// of $array[$index]
//
// if you add a ksort it works fine:
ksort($search,SORT_NUMERIC);
ksort($replace,SORT_NUMERIC);
reset($search);
reset($replace);
$string3 = preg_replace($search,$replace,$string);
echo "<BR><BR>Corrected (ksort) Result is:<BR>" . $string3;
//
// Has someone an idea, about what's happening here?
//
// just a guy addicted to php ;-)
?>
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[2003-01-22 07:43:39] grischa.toedt@web.de
<?php
// Hi, while using the following code i experienced
// an interesting behaviour of preg_replace():
$string = "Say a [word0] about [word1] and [word2]";
$search[0] ="[word0]";
$search[1]= "[word1]";
$search[2]= "[word2]";
$replace[0]="betterWord0";
$replace[2]="betterWord2";
$replace[1]="betterWord1";
$string = preg_replace($search,$replace,$string);
echo "Result is:<BR>" . $string;
echo "<BR><BR>Result should be:<BR> Say a [betterWord0] about
[betterWord1] and [betterWord2]";
// result should be:
//Say a [betterWord0] about [betterWord1] and [betterWord2]
//
// but produces:
//Say a [betterWord0] about [betterWord2] and [betterWord1]
//
// Seems like the order in which i build my array
// is the order for replacing...and not the index
// of $array[$index]
//
//
// Has someone an idea, about what's happening here?
//
// just a guy addicted to php ;-)
?>
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--
Edit this bug report at http://bugs.php.net/?id=21816&edit=1