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<?php $str = '${\\"GL\\x47\\x4c\\x4c\\x53\\"}'; echo preg_replace_callback( '/\\\\x([\da-fA-F]+)/', fn($m) => pack("H*", $m[1]), $str );
Output for git.master_jit, git.master, rfc.property-hooks
${\"GLGLLS\"}

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