3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $start = microtime(true); $null = null; foreach (range(1, 10000) as $f) { is_null($null); } var_dump(microtime(true) - start);
Output for 7.2.0
Warning: Use of undefined constant start - assumed 'start' (this will throw an Error in a future version of PHP) in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0029)
Output for 7.1.7
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0036)
Output for 7.1.6
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0163)
Output for 7.1.5
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0081)
Output for 7.1.4
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0069)
Output for 7.1.3
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0103)
Output for 7.1.2
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0071)
Output for 7.1.1
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0038)
Output for 7.1.0
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 Warning: A non-numeric value encountered in /in/XEc06 on line 12 float(1382623123.0035)
Output for 5.0.5, 5.3.12, 5.4.14, 5.5.13, 7.0.20
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0053)
Output for 7.0.1 - 7.0.2, 7.0.5, 7.0.19
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0029)
Output for 7.0.14, 7.0.18
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.003)
Output for 5.2.12, 5.2.17, 5.3.2, 5.3.17, 5.3.19, 5.3.22, 7.0.3, 7.0.17
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0034)
Output for 5.2.11, 5.4.25, 5.4.29, 5.4.35, 5.4.37 - 5.4.38, 5.4.41 - 5.4.42, 5.4.45, 5.5.23, 5.5.36, 7.0.16
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0044)
Output for 5.2.9, 5.3.0, 5.3.7, 5.3.20, 5.4.10, 7.0.15
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0035)
Output for 5.2.6, 5.3.5, 5.3.11, 5.3.18, 5.4.8 - 5.4.9, 7.0.13
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0036)
Output for 7.0.0, 7.0.8, 7.0.12
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0028)
Output for 5.2.8, 5.2.14, 5.3.6, 5.3.16, 5.3.24, 5.4.12, 7.0.11
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0033)
Output for 5.1.0, 5.1.5, 5.2.13, 5.2.15, 5.4.1, 5.4.6, 7.0.10
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0031)
Output for 5.1.4, 5.1.6, 5.2.10, 5.3.9, 5.4.0, 5.4.5, 7.0.9
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0032)
Output for 5.1.1, 5.2.7, 5.3.21, 7.0.7
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0037)
Output for 5.2.1, 7.0.6
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0027)
Output for 5.0.0, 5.2.3, 5.3.3, 5.5.0, 5.5.11, 5.5.19, 5.5.34, 5.5.38, 7.0.4
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0042)
Output for hhvm-3.17.3
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0898)
Output for hhvm-3.15.4
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0884)
Output for hhvm-3.13.2
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0954)
Output for hhvm-3.12.14
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0887)
Output for hhvm-3.11.1
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0922)
Output for hhvm-3.10.1
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.1005)
Output for 5.4.20, 5.4.30, 5.4.44, 5.6.29 - 5.6.30
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0046)
Output for 5.5.6, 5.5.9, 5.6.4, 5.6.28
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0062)
Output for 5.2.0, 5.5.16, 5.6.1, 5.6.20 - 5.6.21, 5.6.27
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0047)
Output for 5.3.25, 5.5.18, 5.5.30, 5.6.10, 5.6.26
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0048)
Output for 5.4.43, 5.5.22, 5.6.25
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.005)
Output for 5.2.2, 5.6.24
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0064)
Output for 5.4.18, 5.5.35, 5.6.9, 5.6.23
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0052)
Output for 5.3.1, 5.3.26, 5.4.23, 5.4.34, 5.5.2, 5.6.15, 5.6.22
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0049)
Output for 5.4.22, 5.6.19
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0075)
Output for 5.3.10, 5.6.2, 5.6.18
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0057)
Output for 5.4.24, 5.4.28, 5.5.4, 5.6.7, 5.6.11, 5.6.14, 5.6.16 - 5.6.17
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0055)
Output for 5.0.4, 5.5.31, 5.6.5, 5.6.13
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0054)
Output for 5.6.0, 5.6.12
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0061)
Output for 5.6.8
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0078)
Output for 5.4.7, 5.4.39, 5.5.12, 5.6.6
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0051)
Output for 5.0.3, 5.6.3
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0071)
Output for 5.3.4, 5.3.8, 5.4.2, 5.5.33, 5.5.37
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0041)
Output for 5.0.1, 5.5.32
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.007)
Output for 5.5.29
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0068)
Output for 5.4.15 - 5.4.17, 5.4.36, 5.5.28
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0045)
Output for 5.3.14 - 5.3.15, 5.3.28, 5.4.13, 5.4.26, 5.4.31 - 5.4.32, 5.5.1, 5.5.3, 5.5.7 - 5.5.8, 5.5.14 - 5.5.15, 5.5.20 - 5.5.21, 5.5.27
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0043)
Output for 5.1.3, 5.5.26
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0069)
Output for 5.1.2, 5.5.24 - 5.5.25
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0059)
Output for 5.4.11, 5.4.19, 5.5.10
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0056)
Output for 5.5.5
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0067)
Output for 5.4.40
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0063)
Output for 5.4.27
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0072)
Output for 5.4.21
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0083)
Output for 5.2.5, 5.4.4
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0038)
Output for 5.2.16, 5.3.13, 5.3.23, 5.3.29, 5.4.3
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0039)
Output for 5.0.2, 5.3.27
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.0058)
Output for 5.2.4
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(1382623123.004)
Output for 4.4.9
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.003312)
Output for 4.4.8
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.003294)
Output for 4.4.7
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.004035)
Output for 4.4.6
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.002873)
Output for 4.4.5
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.002858)
Output for 4.4.4
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.002842)
Output for 4.4.3
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.006051)
Output for 4.4.2
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.004646)
Output for 4.4.1
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.002876)
Output for 4.4.0
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.003365)
Output for 4.3.11
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.003047)
Output for 4.3.10
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.003195)
Output for 4.3.9
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.005326)
Output for 4.3.8
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.007356)
Output for 4.3.7
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.009128)
Output for 4.3.6
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.006371)
Output for 4.3.5
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.004188)
Output for 4.3.4
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.004614)
Output for 4.3.3
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.003979)
Output for 4.3.2
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.006108)
Output for 4.3.1
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.004562)
Output for 4.3.0
Notice: Use of undefined constant start - assumed 'start' in /in/XEc06 on line 12 float(0.004377)