3v4l.org

run code in 300+ PHP versions simultaneously
<?php $list = []; for ($i = 0; $i < 100000; $i++) { $list[] = $i; } var_dump(memory_get_peak_usage() / 1024 / 1024);
Output for 8.2.0 - 8.2.2
float(2.373077392578125)
Output for 8.1.0 - 8.1.15
float(4.373374938964844)
Output for 8.0.0 - 8.0.27
float(4.372962951660156)
Output for 7.4.0 - 7.4.33
float(4.3733749389648)
Output for 7.3.0 - 7.3.33
float(4.3732986450195)
Output for 7.2.0 - 7.2.34
float(4.3696517944336)
Output for 7.1.0 - 7.1.33
float(4.3346481323242)
Output for 7.0.0 - 7.0.33
float(4.3346633911133)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
float(14.178634643555)
Output for 5.4.10 - 5.4.45
float(14.178550720215)
Output for 5.4.0 - 5.4.9
float(14.178047180176)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/EImpo on line 2
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/EImpo on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/EImpo on line 2
Process exited with code 255.

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