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<?php preg_replace("/foo/e", "bar", $foo);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $foo in /in/InY0n on line 2 Deprecated: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /in/InY0n on line 2 Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/InY0n on line 2

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