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<?php function vassertf($format, array $args) { return vsprintf($format, $args); } var_dump(vassertf('Too many %s placeholders %s', ['foo'])); var_dump(vassertf('Not enough placeholders', ['foo'])); var_dump(vassertf('Correct number of %s placeholders', ['foo']));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ValueError: The arguments array must contain 2 items, 1 given in /in/uavss:5 Stack trace: #0 /in/uavss(5): vsprintf('Too many %s pla...', Array) #1 /in/uavss(8): vassertf('Too many %s pla...', Array) #2 {main} thrown in /in/uavss on line 5
Process exited with code 255.

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