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<?php $originalString = 'Her (III.1) was the age of 2 years and 11 months. (shoulder a 4/5)'; $findStringArray = array("age", "(III.1)", "2", "months", "4"); foreach($findStringArray as $key => $value) { $originalString = preg_replace('/(?<=^|[. ])'.preg_quote($value).'(?=[. ]|$)/i', "__", $originalString); } echo $originalString,"\n". PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
Her __ was the __ of __ years and 11 __. (shoulder a 4/5)

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