note 52135 deleted from function.preg-replace by tularis

From: Date: Sun, 18 Jun 2006 13:26:25 +0000
Subject: note 52135 deleted from function.preg-replace by tularis
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Note Submitter: bens at effortlessis dot com ---- It's important to note how preg_match actually works when processing arrays - it's the same as running preg_match repeatedly in serial. Here's a demonstration: <? $a="a b c"; echo "Sample 1 "; echo $b=str_replace("b", "_", $a); echo "\n"; echo "Sample 2 "; echo str_replace("_", "BAD", $b); echo "\n"; $find=array('/b/', "/_/"); $replace=array('_', 'BAD'); echo "Sample 3 "; echo preg_replace($find, $replace, $a); echo "\n"; ?> This prints out Sample 1 a _ c Sample 2 a BAD c Sample 3 a BAD c Since I'd expected preg_replace to operate in one pass, I'd expected the output to be: Sample 1 a _ c Sample 2 a BAD c Sample 3 a b c

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