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<?php $a = 42; var_dump( filter_var( $a, FILTER_VALIDATE_STRING ) ); var_dump( filter_var( $a, FILTER_SANITIZE_STRING ) );
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "FILTER_VALIDATE_STRING" in /in/isYXc:4 Stack trace: #0 {main} thrown in /in/isYXc on line 4
Process exited with code 255.

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