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<?php $strselvaluelist = '2'; $i=0; if(!empty($strselvaluelist)){ while($i < strlen($strselvaluelist)){ if($strselvaluelist[$i] == 4){ echo 1; if(!strstr(17, $strselvaluelist)){ echo'2'; $strselvaluelist.='|17'; } } $i++; } } var_dump($strselvaluelist);
Output for git.master, git.master_jit, rfc.property-hooks
string(1) "2"

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