3v4l.org

run code in 300+ PHP versions simultaneously
<?php $vars = array('a1', '1a', 'ačervený'); foreach($vars as $var) { $$var = 'x'; } ${'a1'} = 'y'; ${'1a'} = 'y'; ${'ačervený'} = 'y'; $a = 1; $A = 2; var_dump($a, $A); $💩 = 'a'; var_dump($💩);

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)
8.3.60.0110.00716.36
8.3.50.0100.00921.97
8.3.40.0040.01118.71
8.3.30.0100.00319.10
8.3.20.0000.00720.29
8.3.10.0070.00021.90
8.3.00.0040.00419.01
8.2.180.0160.00318.06
8.2.170.0090.00622.96
8.2.160.0100.00320.53
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0000.00826.16
8.2.120.0000.00819.66
8.2.110.0050.00521.00
8.2.100.0070.00317.91
8.2.90.0030.00618.34
8.2.80.0090.00018.00
8.2.70.0030.00517.50
8.2.60.0080.00017.48
8.2.50.0000.00817.55
8.2.40.0030.00719.35
8.2.30.0020.00517.79
8.2.20.0000.00717.74
8.2.10.0040.00418.11
8.2.00.0000.00717.59
8.1.280.0140.00625.92
8.1.270.0040.00418.66
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0040.00422.54
8.1.230.0110.00020.85
8.1.220.0090.00017.78
8.1.210.0030.00618.77
8.1.200.0030.00617.23
8.1.190.0040.00417.23
8.1.180.0030.00618.10
8.1.170.0060.00318.91
8.1.160.0070.00018.89
8.1.150.0040.00418.89
8.1.140.0020.00517.45
8.1.130.0000.00817.82
8.1.120.0000.00817.45
8.1.110.0000.00817.47
8.1.100.0040.00417.49
8.1.90.0000.00817.49
8.1.80.0000.00817.44
8.1.70.0040.00417.41
8.1.60.0040.00417.58
8.1.50.0030.00517.50
8.1.40.0000.00817.42
8.1.30.0050.00217.66
8.1.20.0000.00817.56
8.1.10.0050.00217.40
8.1.00.0030.00517.41
8.0.300.0070.00019.88
8.0.290.0000.00816.75
8.0.280.0040.00417.96
8.0.270.0000.00818.02
8.0.260.0000.00617.17
8.0.250.0040.00416.99
8.0.240.0000.00716.95
8.0.230.0030.00316.98
8.0.220.0070.00016.88
8.0.210.0040.00416.87
8.0.200.0080.00016.90
8.0.190.0050.00216.97
8.0.180.0070.00016.89
8.0.170.0000.00816.79
8.0.160.0040.00416.86
8.0.150.0070.00016.91
8.0.140.0040.00416.85
8.0.130.0060.00013.30
8.0.120.0050.00316.91
8.0.110.0000.00716.83
8.0.100.0020.00516.91
8.0.90.0040.00416.96
8.0.80.0070.01316.90
8.0.70.0040.00416.73
8.0.60.0000.00716.80
8.0.50.0040.00416.87
8.0.30.0100.01117.11
8.0.20.0080.01017.40
8.0.10.0050.00316.91
8.0.00.0080.00916.69
7.4.330.0060.00015.09
7.4.320.0040.00416.42
7.4.300.0040.00416.46
7.4.290.0040.00416.40
7.4.280.0040.00416.50
7.4.270.0060.00316.61
7.4.260.0070.00016.41
7.4.250.0000.00716.56
7.4.240.0040.00416.55
7.4.230.0030.00316.60
7.4.220.0100.01316.63
7.4.210.0100.00416.58
7.4.200.0030.00316.25
7.4.160.0100.00616.55
7.4.150.0140.00417.40
7.4.140.0100.00717.86
7.4.130.0070.01016.50
7.4.120.0110.00916.51
7.4.110.0070.01216.48
7.4.100.0080.00916.47
7.4.90.0080.00816.48
7.4.80.0040.01319.39
7.4.70.0040.01316.62
7.4.60.0040.01216.43
7.4.50.0030.00616.42
7.4.40.0050.01016.58
7.4.30.0120.01216.36
7.4.00.0100.00714.95
7.3.330.0000.00513.13
7.3.320.0110.00313.07
7.3.310.0000.00716.39
7.3.300.0040.00416.32
7.3.290.0030.00516.25
7.3.280.0060.01216.34
7.3.270.0070.01017.40
7.3.260.0090.00916.53
7.3.250.0130.00716.49
7.3.240.0040.01516.31
7.3.230.0140.00616.49
7.3.210.0070.01016.64
7.3.200.0120.00619.39
7.3.190.0090.00616.27
7.3.180.0060.01116.30
7.3.170.0040.01316.43
7.3.160.0100.00716.32
7.2.330.0180.00716.75
7.2.320.0100.01316.82
7.2.310.0070.01016.70
7.2.300.0040.01316.61
7.2.290.0080.00816.78
7.2.00.0000.01419.66
7.1.100.0090.00318.18
7.1.70.0060.00617.25
7.1.60.0040.01419.46
7.1.50.0190.00434.85
7.1.00.0030.07722.28
7.0.200.0030.00616.70
7.0.140.0070.05722.21
7.0.60.0100.07320.03
7.0.50.0070.08017.66
7.0.40.0000.06320.39
7.0.30.0200.04020.05
7.0.20.0170.05020.16
7.0.10.0330.07020.17
7.0.00.0030.08720.32
5.6.280.0000.07720.92
5.6.210.0030.03720.61
5.6.200.0070.04318.09
5.6.190.0100.06720.41
5.6.180.0230.07320.38
5.6.170.0200.05720.55
5.6.160.0070.05720.32
5.6.150.0000.04318.23
5.6.140.0070.08318.11
5.6.130.0000.04318.07
5.6.120.0100.08321.00
5.6.110.0130.04020.98
5.6.100.0030.07720.98
5.6.90.0100.03721.10
5.6.80.0370.07020.48
5.6.70.0300.07020.49
5.5.350.0070.08720.41
5.5.340.0070.03717.91
5.5.330.0030.07020.36
5.5.320.0170.05320.38
5.5.310.0200.09320.33
5.5.300.0130.07717.95
5.5.290.0030.04017.97
5.5.280.0100.08320.77
5.5.270.0070.03720.75
5.5.260.0070.03720.75
5.5.250.0200.07720.64
5.5.240.0100.06320.12
5.4.450.0670.08319.45
5.4.440.0730.05319.45
5.4.430.0470.05719.63
5.4.420.0230.05019.15
5.4.410.0700.06019.11
5.4.400.0270.05318.51
5.4.390.0270.06718.58
5.4.380.0200.07718.61
5.4.370.0200.05718.77
5.4.360.0070.06318.59
5.4.350.0130.06018.74
5.4.340.0200.06318.56
5.4.320.0130.07018.52
5.4.310.0130.05718.50
5.4.300.0200.05318.63
5.4.290.0170.05718.67
5.4.280.0200.05318.46
5.4.270.0130.07318.60
5.4.260.0170.06318.48
5.4.250.0130.05718.77
5.4.240.0200.05318.73
5.4.230.0230.06318.70
5.4.220.0170.05718.59
5.4.210.0130.05318.49
5.4.200.0200.04716.61
5.4.190.0300.04318.67
5.4.180.0170.05318.45
5.4.170.0170.06018.75
5.4.160.0200.04718.59
5.4.150.0170.05318.50
5.4.140.0200.05316.18
5.4.130.0130.05316.14
5.4.120.0270.04016.23
5.4.110.0170.06716.22
5.4.100.0200.05016.21
5.4.90.0230.05016.34
5.4.80.0270.03716.04
5.4.70.0130.05316.14
5.4.60.0100.05716.13
5.4.50.0130.05716.17
5.4.40.0070.06316.23
5.4.30.0130.05316.05
5.4.20.0200.04716.05
5.4.10.0130.05316.09
5.4.00.0270.03715.63
5.3.290.0370.07314.66
5.3.280.0170.05314.57
5.3.270.0230.05014.50
5.3.260.0170.05714.59
5.3.250.0270.04714.62
5.3.240.0100.06014.57
5.3.230.0100.06014.69
5.3.220.0270.05014.48
5.3.210.0200.06014.51
5.3.200.0170.05314.64
5.3.190.0230.05714.46
5.3.180.0170.06014.62
5.3.170.0200.05714.61
5.3.160.0230.04714.61
5.3.150.0070.06714.47
5.3.140.0100.06014.54
5.3.130.0170.06014.59
5.3.120.0170.05314.48
5.3.110.0170.06314.53
5.3.100.0200.05014.01
5.3.90.0300.05014.05
5.3.80.0170.05014.13
5.3.70.0100.06014.00
5.3.60.0170.05013.94
5.3.50.0100.06313.93
5.3.40.0130.07014.04
5.3.30.0230.06714.00
5.3.20.0200.06013.60
5.3.10.0230.06313.58
5.3.00.0330.05713.62
5.2.170.0100.05011.09
5.2.160.0170.03711.11
5.2.150.0070.05011.20
5.2.140.0170.04711.11
5.2.130.0130.05311.01
5.2.120.0270.04311.15
5.2.110.0100.04711.03
5.2.100.0170.04011.26
5.2.90.0200.03311.05
5.2.80.0170.04011.25
5.2.70.0270.02711.07
5.2.60.0100.04311.09
5.2.50.0100.04711.05
5.2.40.0030.05010.98
5.2.30.0170.03311.00
5.2.20.0170.04310.99
5.2.10.0100.04310.87
5.2.00.0030.05010.70
5.1.60.0100.03710.11
5.1.50.0200.0309.95
5.1.40.0200.0339.95
5.1.30.0070.04310.37
5.1.20.0130.03710.40
5.1.10.0200.03010.05
5.1.00.0070.04010.08
5.0.50.0100.0308.58
5.0.40.0030.0308.50
5.0.30.0070.0438.26
5.0.20.0100.0278.34
5.0.10.0030.0308.22
5.0.00.0130.0438.23
4.4.90.0070.0205.88
4.4.80.0000.0275.86
4.4.70.0100.0175.88
4.4.60.0070.0205.85
4.4.50.0100.0175.90
4.4.40.0100.0305.82
4.4.30.0030.0235.88
4.4.20.0100.0205.96
4.4.10.0070.0205.96
4.4.00.0100.0375.85
4.3.110.0070.0235.80
4.3.100.0130.0135.84
4.3.90.0030.0235.78
4.3.80.0070.0405.82
4.3.70.0030.0235.78
4.3.60.0030.0235.91
4.3.50.0070.0305.89
4.3.40.0070.0435.79
4.3.30.0070.0204.56
4.3.20.0030.0234.58
4.3.10.0030.0234.49
4.3.00.0070.0236.92

preferences:
47.06 ms | 401 KiB | 5 Q