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<?php $string='"WEINSTEIN","ANTONIA \"TOBY"","STILES","HOOPER \"PETER"","HENDERSON",'; $pattern = '/(?<=\S)""/'; $replacement = '\\""'; $result=preg_replace($pattern, $replacement, $string); echo $result;
Output for git.master, git.master_jit, rfc.property-hooks
"WEINSTEIN","ANTONIA \"TOBY\"","STILES","HOOPER \"PETER\"","HENDERSON",

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