3v4l.org

run code in 300+ PHP versions simultaneously
<?php $starttime = microtime(true); $sArr = array(); for ($i = 0; $i < 300000; $i++) { $sArr[] = 'String concatenation. ' . $i; } $str = implode('', $sArr); $x = md5($str); $endtime = microtime(true); print "array append & implode: " . ($endtime - $starttime) . " s\n" ;

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.1.70.0410.05154.79
7.1.60.0240.08155.13
7.1.50.0190.03854.61
7.1.00.0000.13059.97
7.0.200.1510.04854.30
7.0.140.0030.14359.88
7.0.120.0070.13759.83
7.0.60.0170.08755.07
7.0.50.0170.08352.95
7.0.40.0230.12339.14
7.0.30.1100.12339.23
7.0.20.0700.11038.99
7.0.10.0230.13739.24
7.0.00.0200.11739.09
5.6.280.0300.16785.22
5.6.210.0330.16084.93
5.6.200.0170.16782.29
5.6.190.0300.15384.66
5.6.180.0530.09384.45
5.6.170.0430.10784.44
5.6.160.0230.15084.45
5.6.150.0370.13782.36
5.6.140.0430.15082.31
5.6.130.0270.15082.27
5.6.120.0230.12085.09
5.6.110.0300.14085.19
5.6.100.0270.17085.18
5.6.90.0230.15085.20
5.6.80.0300.16084.63
5.5.350.0430.14384.61
5.5.340.0200.10782.06
5.5.330.0270.15084.36
5.5.320.0170.10784.36
5.5.310.0500.10784.26
5.5.300.0400.15082.12
5.5.290.0330.10782.18
5.5.280.0430.13385.10
5.5.270.0300.16385.08
5.5.260.0200.19085.04
5.5.250.0330.15784.86
5.5.240.0330.18084.35
5.4.450.0230.13783.64
5.4.440.0130.11083.62
5.4.430.0270.16783.36
5.4.420.0370.15783.22
5.4.410.0230.10383.48
5.4.400.0200.11083.27
5.4.390.0230.10382.93
5.4.380.0230.11783.21
5.4.370.0230.14383.31
5.4.360.0230.14083.09
5.4.350.0070.12083.31
5.4.340.0200.10383.13
5.4.320.0270.16383.07
5.4.310.0200.14083.21
5.4.300.0170.16383.26
5.4.290.0200.15783.33
5.4.280.0200.11783.30
5.4.270.0170.13783.22
5.4.260.0200.17783.21
5.4.250.0230.13083.20
5.4.240.0270.15083.30
5.4.230.0300.16783.00
5.4.220.0230.13383.27
5.4.210.0200.15083.23
5.4.200.0400.14383.04
5.4.190.0100.11783.29
5.4.180.0230.12383.29
5.4.170.0370.17083.08
5.4.160.0230.16383.13
5.4.150.0230.10783.28
5.4.140.0170.12380.53
5.4.130.0270.10080.42
5.4.120.0200.10780.50
5.4.110.0300.09780.58
5.4.100.0170.12780.36
5.4.90.0230.10380.47
5.4.80.0270.15080.52
5.4.70.0300.15780.38
5.4.60.0370.09780.47
5.4.50.0370.13780.46
5.4.40.0170.10380.40
5.4.30.0130.12380.41
5.4.20.0070.12080.32
5.4.10.0370.08380.58
5.4.00.0130.10379.78
5.3.290.0370.14377.79
5.3.280.0230.11377.85
5.3.270.0300.16377.77
5.3.260.0330.15377.64
5.3.250.0230.11077.74
5.3.240.0170.14377.77
5.3.230.0300.10077.62
5.3.220.0230.16377.73
5.3.210.0200.13377.73
5.3.200.0300.11377.71
5.3.190.0300.16077.70
5.3.180.0300.17077.73
5.3.170.0200.15077.82
5.3.160.0230.16377.70
5.3.150.0500.14377.70
5.3.140.0130.12077.72
5.3.130.0130.11077.71
5.3.120.0270.12377.66
5.3.110.0230.10377.72
5.3.100.0230.10077.15
5.3.90.0330.15377.18
5.3.80.0200.12377.10
5.3.70.0370.15077.21
5.3.60.0130.11777.07
5.3.50.0230.14777.08
5.3.40.0200.10377.13
5.3.30.0130.11077.01
5.3.20.0300.12376.84
5.3.10.0230.10077.58
5.3.00.0170.10376.74
5.2.170.0130.14073.30
5.2.160.0230.12773.27
5.2.150.0170.13373.31
5.2.140.0170.14073.18
5.2.130.0200.14073.27
5.2.120.0230.12773.39
5.2.110.0170.13073.23
5.2.100.0200.13073.25
5.2.90.0370.11373.38
5.2.80.0230.12773.20
5.2.70.0200.13373.29
5.2.60.0230.12773.16
5.2.50.0170.18373.25
5.2.40.0330.20373.08
5.2.30.0170.16373.16
5.2.20.0130.20773.12
5.2.10.0300.17073.84
5.2.00.0070.14773.09
5.1.60.0330.263126.44
5.1.50.0270.243126.41
5.1.40.0400.253126.46
5.1.30.0400.210126.74
5.1.20.0230.273126.81
5.1.10.0530.270126.43
5.1.00.0430.233126.52
5.0.50.0330.260125.05
5.0.40.0500.217124.99
5.0.30.0470.283124.57
5.0.20.0400.270124.64
5.0.10.0370.287124.67
5.0.00.0430.277124.60
4.4.90.0500.317159.00
4.4.80.0300.250158.93
4.4.70.0370.243158.92
4.4.60.0500.290158.97
4.4.50.0400.297158.95
4.4.40.0270.313158.90
4.4.30.0500.297158.89
4.4.20.0300.320159.02
4.4.10.0530.267158.95
4.4.00.0700.287158.96
4.3.110.0570.250158.92
4.3.100.0530.247158.81
4.3.90.0570.313158.85
4.3.80.0400.297158.89
4.3.70.1000.263158.78
4.3.60.0500.277158.89
4.3.50.0400.250158.84
4.3.40.0530.237158.77
4.3.30.0330.303157.54
4.3.20.0270.300157.52
4.3.10.0300.277120.98
4.3.00.0400.267120.95

preferences:
35.92 ms | 401 KiB | 5 Q