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<?php $searchTerm = "abcd"; $replaceTerm = "XXXX"; $test=array("$searchTerm/$searchTerm_.mp3", "$searchTerm", "xay$searchTerm", "asdasd/$searchTerm.mp3", "$searchTerm.", "blahahbasd$searchTerm"); foreach ($test as $t) echo "$t => " . preg_replace("/(". preg_quote($searchTerm) . "([^_.])|". preg_quote($searchTerm) . "$)/x", preg_quote($replaceTerm) . "\${2}", $t) . "\n";
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $searchTerm_ in /in/fR8oX on line 5 abcd/.mp3 => XXXX/.mp3 abcd => XXXX xayabcd => xayXXXX asdasd/abcd.mp3 => asdasd/abcd.mp3 abcd. => abcd. blahahbasdabcd => blahahbasdXXXX
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: searchTerm_ in /in/fR8oX on line 5 abcd/.mp3 => XXXX/.mp3 abcd => XXXX xayabcd => xayXXXX asdasd/abcd.mp3 => asdasd/abcd.mp3 abcd. => abcd. blahahbasdabcd => blahahbasdXXXX
Output for 7.3.32 - 7.3.33
abcd/.mp3 => XXXX/.mp3 abcd => XXXX xayabcd => xayXXXX asdasd/abcd.mp3 => asdasd/abcd.mp3 abcd. => abcd. blahahbasdabcd => blahahbasdXXXX
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: searchTerm_ in /in/fR8oX on line 5 abcd/.mp3 => XXXX/.mp3 abcd => XXXX xayabcd => xayXXXX asdasd/abcd.mp3 => asdasd/abcd.mp3 abcd. => abcd. blahahbasdabcd => blahahbasdXXXX

preferences:
234.51 ms | 402 KiB | 341 Q