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<?php $string = "222\t55555\t9\thello\tbyebye\t444"; $newInt = 2; var_export( preg_replace("/\t[^\t]+\t\K\d+/", $newInt, $string, 1) );
Output for git.master, git.master_jit, rfc.property-hooks
'222 55555 2 hello byebye 444'

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