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<?php $string = "The quick brown fox jumped over the lazy dog.\n"; $patterns = array(); $patterns[0] = '/quick/'; $patterns[1] = '/brown/'; $patterns[2] = '/fox/'; $replacements = array(); $replacements[2] = 'bear'; var_dump($replacements); $replacements[1] = 'black'; var_dump($replacements); $replacements[0] = 'slow'; var_dump($replacements); echo preg_replace($patterns, $replacements, $string); $replacements = array(); $replacements[0] = 'slow'; $replacements[1] = 'black'; $replacements[2] = 'bear'; echo preg_replace($patterns, $replacements, $string);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [2]=> string(4) "bear" } array(2) { [2]=> string(4) "bear" [1]=> string(5) "black" } array(3) { [2]=> string(4) "bear" [1]=> string(5) "black" [0]=> string(4) "slow" } The bear black slow jumped over the lazy dog. The slow black bear jumped over the lazy dog.

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