3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'a quick red fox jumped over the lazy brown dog'; $charFirst = substr($item, 0, 1); $charLast = substr($item, strlen($item) - 1, 1); echo $charFirst . PHP_EOL; echo $charLast . PHP_EOL;
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $item in /in/mkOlP on line 4 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /in/mkOlP on line 4 Warning: Undefined variable $item in /in/mkOlP on line 5 Warning: Undefined variable $item in /in/mkOlP on line 5 Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /in/mkOlP on line 5 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /in/mkOlP on line 5
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $item in /in/mkOlP on line 4 Warning: Undefined variable $item in /in/mkOlP on line 5 Warning: Undefined variable $item in /in/mkOlP on line 5
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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: item in /in/mkOlP on line 4 Notice: Undefined variable: item in /in/mkOlP on line 5 Notice: Undefined variable: item in /in/mkOlP on line 5
Output for 7.3.32 - 7.3.33
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.3
Notice: Undefined variable: item in /in/mkOlP on line 4 Notice: Undefined variable: item in /in/mkOlP on line 5 Notice: Undefined variable: item in /in/mkOlP on line 5
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Notice: Undefined variable: item in /in/mkOlP on line 4 Notice: Undefined variable: item in /in/mkOlP on line 5 Notice: Undefined variable: item in /in/mkOlP on line 5 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/mkOlP on line 7 PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/mkOlP on line 8 PHP_EOL
preferences:
263.28 ms | 402 KiB | 459 Q