3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mykey = uniqid("\x00"); $mykey = preg_replace('/[a-zA-Z]/', "4", $mykey); $var[$mykey] = TRUE; foreach($var as $key => $val) { if ($key === $mykey) { echo 'You got it right'; } else { echo 'You got it wrong'; } }

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)
7.1.70.0000.00717.36
7.1.60.0120.00819.61
7.1.50.0070.01317.25
7.1.00.0030.07722.58
7.0.200.0070.00016.95
7.0.140.0130.06322.18
7.0.60.0170.07319.94
7.0.50.0030.04017.91
7.0.40.0030.05320.32
7.0.30.0330.04020.11
7.0.20.0270.05720.18
7.0.10.0100.07720.14
7.0.00.0100.08020.00
5.6.280.0070.07021.09
5.6.210.0030.04320.52
5.6.200.0070.08318.16
5.6.190.0130.07020.67
5.6.180.0330.06720.41
5.6.170.0200.04020.60
5.6.160.0130.04020.39
5.6.150.0100.07018.18
5.6.140.0170.07018.16
5.6.130.0100.07718.18
5.6.120.0070.05721.02
5.6.110.0030.09320.95
5.6.100.0000.04320.97
5.6.90.0070.08321.12
5.6.80.0030.04020.36
5.6.70.0230.06720.50
5.5.350.0000.08320.39
5.5.340.0030.05317.95
5.5.330.0030.04720.21
5.5.320.0470.06720.20
5.5.310.0270.05020.16
5.5.300.0230.03717.91
5.5.290.0130.06717.90
5.5.280.0070.04320.89
5.5.270.0030.08320.86
5.5.260.0100.08020.66
5.5.250.0000.08720.58
5.5.240.0100.06320.14
5.4.450.0570.05719.27
5.4.440.0100.07019.24
5.4.430.0200.08019.47
5.4.420.0200.05719.13
5.4.410.0230.07019.50
5.4.400.0700.06719.26
5.4.390.0730.06719.15
5.4.380.0300.04718.65
5.4.370.0370.04018.76
5.4.360.0330.07018.73
5.4.350.0270.05718.48
5.4.340.0300.05018.57
5.4.320.0080.03512.46
5.4.310.0100.04312.45
5.4.300.0040.03712.45
5.4.290.0050.03812.45
5.4.280.0060.03412.35
5.4.270.0040.03812.35
5.4.260.0050.03812.35
5.4.250.0040.03912.35
5.4.240.0070.03512.35
5.4.230.0090.03512.34
5.4.220.0070.03512.34
5.4.210.0080.03312.34
5.4.200.0090.03312.34
5.4.190.0100.03412.34
5.4.180.0060.03612.34
5.4.170.0050.03712.35
5.4.160.0060.03512.35
5.4.150.0060.03512.34
5.4.140.0040.03912.03
5.4.130.0040.03712.02
5.4.120.0060.03911.97
5.4.110.0030.04011.97
5.4.100.0080.03411.97
5.4.90.0070.03611.97
5.4.80.0060.03711.97
5.4.70.0060.03511.96
5.4.60.0080.03211.97
5.4.50.0040.03711.96
5.4.40.0050.03711.95
5.4.30.0050.03811.95
5.4.20.0090.03311.95
5.4.10.0060.03411.95
5.4.00.0040.03711.44
5.3.290.0120.03312.80
5.3.280.0100.03312.71
5.3.270.0100.03612.72
5.3.260.0080.04412.72
5.3.250.0100.03312.72
5.3.240.0070.03612.72
5.3.230.0020.04212.71
5.3.220.0070.03612.68
5.3.210.0030.04312.68
5.3.200.0060.03612.68
5.3.190.0050.03812.68
5.3.180.0050.03712.67
5.3.170.0090.03312.67
5.3.160.0030.03912.67
5.3.150.0050.03812.68
5.3.140.0080.03312.66
5.3.130.0050.03912.66
5.3.120.0050.03812.66
5.3.110.0050.03912.66
5.3.100.0080.03812.12
5.3.90.0030.03912.09
5.3.80.0080.03412.08
5.3.70.0080.03512.07
5.3.60.0040.03712.07
5.3.50.0020.04312.00
5.3.40.0070.03412.00
5.3.30.0080.03311.95
5.3.20.0060.03411.72
5.3.10.0030.03711.69
5.3.00.0070.03811.68
5.2.170.0060.0299.18
5.2.160.0050.0299.18
5.2.150.0040.0329.18
5.2.140.0030.0339.18
5.2.130.0050.0299.14
5.2.120.0060.0279.14
5.2.110.0040.0299.14
5.2.100.0040.0299.14
5.2.90.0020.0319.14
5.2.80.0030.0329.14
5.2.70.0050.0309.14
5.2.60.0080.0279.09
5.2.50.0020.0329.06
5.2.40.0050.0279.04
5.2.30.0030.0309.02
5.2.20.0030.0299.00
5.2.10.0040.0298.92
5.2.00.0040.0308.78
5.1.60.0040.0248.07
5.1.50.0050.0238.06
5.1.40.0010.0278.04
5.1.30.0040.0258.39
5.1.20.0050.0258.41
5.1.10.0030.0268.14
5.1.00.0050.0238.14
5.0.50.0070.0166.62
5.0.40.0030.0196.48
5.0.30.0040.0296.29
5.0.20.0040.0186.26
5.0.10.0030.0206.23
5.0.00.0030.0316.23
4.4.90.0040.0144.78
4.4.80.0030.0154.75
4.4.70.0000.0184.76
4.4.60.0030.0154.75
4.4.50.0000.0184.77
4.4.40.0030.0244.71
4.4.30.0060.0124.76
4.4.20.0030.0164.84
4.4.10.0050.0144.85
4.4.00.0030.0254.76
4.3.110.0030.0164.67
4.3.100.0040.0144.66
4.3.90.0030.0144.64
4.3.80.0010.0264.58
4.3.70.0020.0164.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0010.0264.54
4.3.30.0030.0153.30
4.3.20.0030.0153.27
4.3.10.0030.0153.24
4.3.00.0030.0277.57

preferences:
39.73 ms | 401 KiB | 5 Q