3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'foo'; $b = & $a; function evilExtractor(array $data) { foreach ($data as $key => & $value) { if (is_string($value)) { $value .= ' - modified'; } } } evilExtractor(get_defined_vars()); var_dump($a, $b);

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)
8.3.60.0140.00316.50
8.3.50.0110.00621.98
8.3.40.0070.00718.77
8.3.30.0070.00718.81
8.3.20.0080.00020.39
8.3.10.0040.00423.48
8.3.00.0120.00319.25
8.2.180.0070.00725.92
8.2.170.0150.00622.96
8.2.160.0150.00018.82
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0090.00926.16
8.2.120.0080.00022.26
8.2.110.0000.00920.38
8.2.100.0040.00717.91
8.2.90.0040.00417.63
8.2.80.0050.00318.74
8.2.70.0000.01017.93
8.2.60.0060.00317.93
8.2.50.0000.00918.10
8.2.40.0050.00320.60
8.2.30.0030.00618.02
8.2.20.0080.00017.65
8.2.10.0040.00418.00
8.2.00.0000.00917.76
8.1.280.0110.01125.92
8.1.270.0090.00023.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.84
8.1.230.0040.00819.00
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.48
8.1.190.0040.00817.11
8.1.180.0040.00418.10
8.1.170.0030.00618.67
8.1.160.0070.00022.15
8.1.150.0040.00418.64
8.1.140.0000.00717.32
8.1.130.0030.00317.82
8.1.120.0040.00417.53
8.1.110.0000.00717.36
8.1.100.0000.00717.53
8.1.90.0040.00417.45
8.1.80.0040.00417.46
8.1.70.0040.00417.39
8.1.60.0060.00317.55
8.1.50.0030.00617.43
8.1.40.0040.00417.54
8.1.30.0000.00817.62
8.1.20.0000.00717.66
8.1.10.0040.00417.41
8.1.00.0060.00317.25
8.0.300.0020.00518.77
8.0.290.0040.00416.75
8.0.280.0030.00318.45
8.0.270.0000.00717.25
8.0.260.0060.00016.88
8.0.250.0030.00316.85
8.0.240.0000.00716.95
8.0.230.0030.00316.93
8.0.220.0030.00316.84
8.0.210.0050.00216.91
8.0.200.0030.00316.95
8.0.190.0030.00316.95
8.0.180.0000.00716.95
8.0.170.0000.00716.92
8.0.160.0000.00716.88
8.0.150.0040.00416.90
8.0.140.0040.00416.77
8.0.130.0050.00013.36
8.0.120.0040.00416.88
8.0.110.0020.00516.88
8.0.100.0070.00016.89
8.0.90.0040.00416.88
8.0.80.0060.00916.78
8.0.70.0000.00716.80
8.0.60.0000.00716.84
8.0.50.0070.00016.74
8.0.30.0080.01116.94
8.0.20.0100.01317.40
8.0.10.0040.00416.96
8.0.00.0160.00516.79
7.4.330.0000.00515.09
7.4.320.0000.00716.63
7.4.300.0060.00016.55
7.4.290.0040.00416.61
7.4.280.0040.00416.64
7.4.270.0040.00416.52
7.4.260.0000.00716.58
7.4.250.0070.00016.54
7.4.240.0040.00316.57
7.4.230.0070.00016.63
7.4.220.0060.01116.59
7.4.210.0070.01016.60
7.4.200.0000.00716.48
7.4.190.0040.00416.67
7.4.160.0110.01116.48
7.4.150.0110.00717.40
7.4.140.0080.01017.86
7.4.130.0100.00716.50
7.4.120.0100.00716.60
7.4.110.0040.01216.49
7.4.100.0110.01116.52
7.4.90.0090.00916.45
7.4.80.0120.00619.39
7.4.70.0060.00916.53
7.4.60.0100.00716.49
7.4.50.0000.00816.39
7.4.40.0060.00622.77
7.4.30.0120.00316.68
7.4.00.0130.00015.08
7.3.330.0000.00513.17
7.3.320.0030.00313.38
7.3.310.0030.00316.21
7.3.300.0000.00716.37
7.3.290.0140.00316.32
7.3.280.0080.00616.29
7.3.270.0100.00717.40
7.3.260.0090.00916.35
7.3.250.0080.00916.52
7.3.240.0090.01216.34
7.3.230.0080.00816.39
7.3.210.0070.01016.46
7.3.200.0060.01619.39
7.3.190.0050.01116.37
7.3.180.0090.00616.70
7.3.170.0060.00916.40
7.3.160.0040.01116.32
7.3.120.0090.00914.75
7.2.330.0090.00916.64
7.2.320.0100.01316.61
7.2.310.0070.01016.57
7.2.300.0100.00716.62
7.2.290.0060.01216.64
7.2.00.0000.01519.33
7.1.100.0040.00718.23
7.1.70.0030.00617.29
7.1.60.0100.01419.33
7.1.50.0070.01417.06
7.1.00.0000.08022.40
7.0.200.0040.00416.78
7.0.140.0030.07321.99
7.0.100.0100.05319.93
7.0.90.0100.03719.92
7.0.80.0100.05319.95
7.0.70.0100.08019.84
7.0.60.0030.07319.95
7.0.50.0030.05720.25
7.0.40.0030.08020.03
7.0.30.0100.08020.10
7.0.20.0100.04320.12
7.0.10.0100.05319.98
7.0.00.0130.04319.97
5.6.280.0030.07320.79
5.6.250.0070.06320.76
5.6.240.0070.05320.55
5.6.230.0070.08720.69
5.6.220.0100.06720.58
5.6.210.0070.08020.56
5.6.200.0030.08020.99
5.6.190.0030.05721.03
5.6.180.0000.08321.08
5.6.170.0100.06321.04
5.6.160.0100.07721.12
5.6.150.0070.07321.02
5.6.140.0100.05021.16
5.6.130.0070.05321.11
5.6.120.0070.06321.04
5.6.110.0070.04021.16
5.6.100.0100.07321.00
5.6.90.0100.06321.04
5.6.80.0100.05320.43
5.6.70.0170.04720.38
5.6.60.0030.07020.51
5.6.50.0170.05320.39
5.6.40.0100.04320.38
5.6.30.0200.05320.50
5.6.20.0070.04020.45
5.6.10.0070.08020.31
5.6.00.0030.05020.52
5.5.380.0070.04320.42
5.5.370.0200.04020.39
5.5.360.0170.06320.50
5.5.350.0070.08720.34
5.5.340.0100.05720.75
5.5.330.0130.03720.86
5.5.320.0130.07320.89
5.5.310.0100.05020.80
5.5.300.0070.06020.80
5.5.290.0100.04020.92
5.5.280.0030.05020.86
5.5.270.0130.04320.81
5.5.260.0100.05320.88
5.5.250.0130.05020.64
5.5.240.0130.07020.21
5.5.230.0130.07720.02
5.5.220.0030.06020.26
5.5.210.0030.07020.27
5.5.200.0130.03720.21
5.5.190.0070.05320.23
5.5.180.0200.06020.27
5.5.160.0070.05720.24
5.5.150.0030.04720.09
5.5.140.0030.04720.22
5.5.130.0100.04720.18
5.5.120.0130.04019.99
5.5.110.0130.04320.07
5.5.100.0170.05320.10
5.5.90.0070.06320.09
5.5.80.0070.06320.00
5.5.70.0130.05020.09
5.5.60.0030.05320.10
5.5.50.0100.03320.16
5.5.40.0100.04720.06
5.5.30.0070.05020.05
5.5.20.0100.04320.00
5.5.10.0030.04320.14
5.5.00.0070.06320.02
5.4.450.0130.06019.41
5.4.440.0100.09719.35
5.4.430.0200.06719.48
5.4.420.0070.06719.22
5.4.410.0100.06719.43
5.4.400.0130.04019.23
5.4.390.0000.04319.16
5.4.380.0170.05318.82
5.4.370.0070.04719.02
5.4.360.0030.04319.03
5.4.350.0100.04018.88
5.4.340.0100.06319.10
5.4.320.0030.04319.18
5.4.310.0070.05319.07
5.4.300.0200.04018.88
5.4.290.0070.04018.89
5.4.280.0100.05718.95
5.4.270.0070.05719.21
5.4.260.0070.05018.94
5.4.250.0200.03718.84
5.4.240.0130.05719.11
5.4.230.0030.04319.13
5.4.220.0130.04719.14
5.4.210.0130.03018.94
5.4.200.0100.04719.22
5.4.190.0070.05719.02
5.4.180.0030.04719.11
5.4.170.0070.04019.20
5.4.160.0000.05718.98
5.4.150.0100.05319.03
5.4.140.0030.04716.42
5.4.130.0030.03716.37
5.4.120.0000.05316.40
5.4.110.0030.06016.34
5.4.100.0000.05016.43
5.4.90.0030.04716.50
5.4.80.0030.04316.45
5.4.70.0000.04316.33
5.4.60.0000.05316.31
5.4.50.0030.07316.33
5.4.40.0030.06716.54
5.4.30.0070.04716.39
5.4.20.0030.04016.33
5.4.10.0030.04016.24
5.4.00.0030.03715.58
5.3.290.0070.07014.64
5.3.280.0100.04014.55
5.3.270.0130.05714.72
5.3.260.0170.04314.66
5.3.250.0100.03314.71
5.3.240.0000.04314.67
5.3.230.0070.04314.54
5.3.220.0070.04014.64
5.3.210.0070.04314.53
5.3.200.0070.05714.55
5.3.190.0100.03714.66
5.3.180.0070.06314.56
5.3.170.0030.03714.45
5.3.160.0100.04714.54
5.3.150.0070.05314.57
5.3.140.0100.07014.51
5.3.130.0030.03714.48
5.3.120.0070.03314.67
5.3.110.0070.03314.57
5.3.100.0000.04714.10
5.3.90.0070.04014.09
5.3.80.0000.04014.04
5.3.70.0030.04014.14
5.3.60.0070.03313.93
5.3.50.0030.03313.98
5.3.40.0000.04013.97
5.3.30.0070.02313.81
5.3.20.0000.03013.61
5.3.10.0000.03713.72
5.3.00.0070.02313.67
5.2.170.0000.03311.00
5.2.160.0070.02711.21
5.2.150.0030.02711.29
5.2.140.0030.02311.30
5.2.130.0030.02711.11
5.2.120.0000.03011.17
5.2.110.0000.02711.16
5.2.100.0030.02311.16
5.2.90.0000.02711.14
5.2.80.0030.02711.10
5.2.70.0030.02711.15
5.2.60.0030.02711.07
5.2.50.0070.02010.88
5.2.40.0000.03010.99
5.2.30.0030.02311.01
5.2.20.0000.03011.02
5.2.10.0000.03010.91
5.2.00.0030.02310.78
5.1.60.0030.04010.54
5.1.50.0030.02010.54
5.1.40.0030.02310.54
5.1.30.0030.03310.54
5.1.20.0070.02310.54
5.1.10.0030.02310.54
5.1.00.0000.02710.54
5.0.50.0000.02010.54
5.0.40.0000.01710.54
5.0.30.0000.03010.54
5.0.20.0000.02010.54
5.0.10.0000.02010.54
5.0.00.0000.02710.54
4.4.90.0000.01310.54
4.4.80.0000.01310.54
4.4.70.0000.01310.54
4.4.60.0030.01010.54
4.4.50.0000.01310.54
4.4.40.0030.03010.54
4.4.30.0030.01310.54
4.4.20.0030.01310.54
4.4.10.0000.01710.54
4.4.00.0030.02010.54
4.3.110.0030.01310.54
4.3.100.0000.01710.54
4.3.90.0000.01310.54
4.3.80.0030.02010.54
4.3.70.0000.01310.54
4.3.60.0000.01710.54
4.3.50.0000.01310.54
4.3.40.0030.02010.54
4.3.30.0000.01310.54
4.3.20.0000.01710.54
4.3.10.0000.01310.54
4.3.00.0000.01710.54

preferences:
48.26 ms | 401 KiB | 5 Q