3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'Something'; $b = 'Other thing'; $startSingle = microtime(); for ($i = 0; $i < 10000; $i++) $var = 'I am a single quote string ',$a,' & ',$b; $endSingle = microtime(); $timeSingle = $endSingle - $startSingle; echo 'No math took : ',$timeSingle,'ms';<?php
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.28, 5.4.0 - 5.4.27
Parse error: syntax error, unexpected ',' in /in/GYob9 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected ',' in /in/GYob9 on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/GYob9 on line 6
Process exited with code 255.
preferences:
246.99 ms | 1395 KiB | 117 Q