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<?php $a = '2015/09/09'; $b = errg_replace('/[0-9]+\/[0-9]+\/[0-9]+/','\\2/\\3/\\1',$a); echo $b;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Call to undefined function errg_replace() in /in/3Lm3p:3 Stack trace: #0 {main} thrown in /in/3Lm3p on line 3
Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: Call to undefined function errg_replace() in /in/3Lm3p on line 3
Process exited with code 255.

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