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run code in 300+ PHP versions simultaneously
<?php $embedCode = '<iframe width="800"> </iframe>'; echo preg_replace('/(<iframe[^>]*\swidth=")(\d+)("\s.*)/', '${1}' . $width . '{3}', $embedCode);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: Undefined variable $width in /in/ci5lk on line 3 <iframe width="800"> </iframe>
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: width in /in/ci5lk on line 3 <iframe width="800"> </iframe>
Output for 7.3.32 - 7.3.33
<iframe width="800"> </iframe>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: width in /in/ci5lk on line 3 <iframe width="800"> </iframe>
preferences:
222.76 ms | 402 KiB | 340 Q