3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php namespace { $s = 1; $start = microtime(true); $i = $s; while($i--) { $a = true; } $end = microtime(true); $g1 = $end-$start; echo 'Global true: ' . sprintf('%f.10', $g1) . "\n"; $i = $s; while($i--) { $a = \true; } $g2 = $end-$start; echo 'Global \true: ' . sprintf('%f.10', $g2) . "\n"; } namespace foo { $start = microtime(true); $i = $s; while($i--) { $a = true; } $end = microtime(true); $n1 = $end-$start; echo 'Namespace true: ' . sprintf('%f.10', $n1) . "\n"; $i = $s; while($i--) { $a = \true; } $n2 = $end-$start; echo 'Namespace \true: ' . sprintf('%f.10', $n2) . "\n"; }
based on CmGup
Output for 5.4.14, 5.4.29, 5.5.30 - 5.5.31, 5.5.33, 5.6.9, 5.6.11, 5.6.13, 7.1.0
Global true: 0.000002.10 Global \true: 0.000002.10 Namespace true: 0.000000.10 Namespace \true: 0.000000.10
Output for 5.4.43, 5.5.27, 5.6.17 - 5.6.20, 7.0.0 - 7.0.3, 7.0.14
Global true: 0.000001.10 Global \true: 0.000001.10 Namespace true: 0.000001.10 Namespace \true: 0.000001.10
Output for 5.5.25, 7.0.4 - 7.0.6
Global true: 0.000001.10 Global \true: 0.000001.10 Namespace true: 0.000000.10 Namespace \true: 0.000000.10
Output for 5.3.0, 5.3.5, 5.3.7, 5.3.10, 5.3.21, 5.4.3, 5.4.12, 5.4.17 - 5.4.20, 5.4.23, 5.4.28, 5.4.41 - 5.4.42, 5.4.45 - 5.5.24, 5.5.26, 5.5.28 - 5.5.29, 5.5.32, 5.5.34 - 5.6.8, 5.6.12, 5.6.14 - 5.6.16, 5.6.21 - 5.6.28
Global true: 0.000002.10 Global \true: 0.000002.10 Namespace true: 0.000001.10 Namespace \true: 0.000001.10
Output for 5.3.1, 5.3.16, 5.3.23, 5.3.26, 5.3.29, 5.4.24, 5.6.10
Global true: 0.000003.10 Global \true: 0.000003.10 Namespace true: 0.000002.10 Namespace \true: 0.000002.10
Output for 5.3.2 - 5.3.4, 5.3.6, 5.3.8 - 5.3.9, 5.3.11 - 5.3.14, 5.3.17 - 5.3.18, 5.3.24 - 5.3.25, 5.3.27, 5.4.1 - 5.4.2, 5.4.6 - 5.4.11, 5.4.13, 5.4.15, 5.4.22, 5.4.25, 5.4.27, 5.4.31 - 5.4.37, 5.4.40, 5.4.44
Global true: 0.000003.10 Global \true: 0.000003.10 Namespace true: 0.000001.10 Namespace \true: 0.000001.10
Output for 5.4.39
Global true: 0.000003.10 Global \true: 0.000003.10 Namespace true: 0.000003.10 Namespace \true: 0.000003.10
Output for 5.3.20, 5.4.21, 5.4.38
Global true: 0.000004.10 Global \true: 0.000004.10 Namespace true: 0.000002.10 Namespace \true: 0.000002.10
Output for 5.4.30
Global true: 0.000002.10 Global \true: 0.000002.10 Namespace true: 0.000005.10 Namespace \true: 0.000005.10
Output for 5.3.28, 5.4.5, 5.4.16, 5.4.26
Global true: 0.000003.10 Global \true: 0.000003.10 Namespace true: 0.000000.10 Namespace \true: 0.000000.10
Output for 5.4.4
Global true: 0.000004.10 Global \true: 0.000004.10 Namespace true: 0.000000.10 Namespace \true: 0.000000.10
Output for 5.4.0
Global true: 0.000002.10 Global \true: 0.000002.10 Namespace true: 0.000004.10 Namespace \true: 0.000004.10
Output for 5.3.22
Global true: 0.000004.10 Global \true: 0.000004.10 Namespace true: 0.000001.10 Namespace \true: 0.000001.10
Output for 5.3.19
Global true: 0.000002.10 Global \true: 0.000002.10 Namespace true: 0.000002.10 Namespace \true: 0.000002.10
Output for 5.3.15
Global true: 0.000004.10 Global \true: 0.000004.10 Namespace true: 0.000003.10 Namespace \true: 0.000003.10
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected '{' in /in/ViQfX on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '{' in /in/ViQfX on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ViQfX on line 3
Process exited with code 255.