3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ''; $b = ''; $c = ''; $d = ''; var_dump($a, $b, $c, $d); echo "---\n"; var_dump($a++, ++$b, $c--, --$d); echo "---\n"; var_dump($a, $b, $c, $d);

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)
8.3.60.0140.00318.43
8.3.50.0100.00821.99
8.3.40.0120.00318.67
8.3.30.0040.01118.96
8.3.20.0160.00320.23
8.3.10.0080.00021.73
8.3.00.0080.00017.80
8.2.180.0110.00716.38
8.2.170.0130.00722.96
8.2.160.0030.01020.39
8.2.150.0050.00224.18
8.2.140.0030.00524.66
8.2.130.0050.00226.16
8.2.120.0050.00321.03
8.2.110.0040.00822.15
8.2.100.0090.00317.93
8.2.90.0040.00419.08
8.2.80.0050.00317.97
8.2.70.0000.00817.63
8.2.60.0000.00817.90
8.2.50.0060.00318.10
8.2.40.0000.00922.33
8.2.30.0100.00018.17
8.2.20.0000.00717.54
8.2.10.0000.00718.04
8.2.00.0000.00717.71
8.1.280.0110.00425.92
8.1.270.0080.00023.83
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00622.57
8.1.230.0110.00017.76
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0050.00517.35
8.1.190.0090.00017.22
8.1.180.0040.00418.10
8.1.170.0040.00418.50
8.1.160.0000.00721.83
8.1.150.0030.00518.79
8.1.140.0040.00417.41
8.1.130.0030.00317.81
8.1.120.0000.00717.32
8.1.110.0050.00317.39
8.1.100.0040.00417.37
8.1.90.0050.00217.38
8.1.80.0000.00817.26
8.1.70.0000.00717.30
8.1.60.0000.00717.44
8.1.50.0050.00317.33
8.1.40.0050.00217.48
8.1.30.0000.00917.59
8.1.20.0080.00017.47
8.1.10.0030.00517.52
8.1.00.0040.00417.42
8.0.300.0000.00718.77
8.0.290.0060.00316.75
8.0.280.0000.00718.43
8.0.270.0050.00317.28
8.0.260.0000.00617.25
8.0.250.0070.00016.87
8.0.240.0000.01016.86
8.0.230.0070.00016.78
8.0.220.0030.00316.72
8.0.210.0030.00316.85
8.0.200.0040.00416.82
8.0.190.0000.00716.86
8.0.180.0040.00416.77
8.0.170.0040.00416.71
8.0.160.0030.00316.74
8.0.150.0040.00416.66
8.0.140.0000.00716.66
8.0.130.0000.00613.23
8.0.120.0040.00416.75
8.0.110.0040.00416.72
8.0.100.0030.00516.70
8.0.90.0050.00216.59
8.0.80.0030.01216.74
8.0.70.0040.00316.62
8.0.60.0000.00716.80
8.0.50.0030.00516.68
8.0.30.0100.01016.85
8.0.20.0090.00917.40
8.0.10.0070.00016.96
8.0.00.0080.00916.61
7.4.330.0020.00215.00
7.4.320.0030.00316.40
7.4.300.0030.00316.37
7.4.290.0000.00616.54
7.4.280.0030.00816.33
7.4.270.0070.00016.51
7.4.260.0040.00416.45
7.4.250.0040.00416.49
7.4.240.0020.00616.49
7.4.230.0000.00716.62
7.4.220.0090.00916.55
7.4.210.0070.00616.56
7.4.200.0070.00016.32
7.4.160.0040.01216.45
7.4.150.0090.00917.40
7.4.140.0040.01617.86
7.4.130.0120.00616.50
7.4.120.0100.00616.50
7.4.110.0130.00716.32
7.4.100.0090.01216.48
7.4.90.0110.00616.29
7.4.80.0120.00819.39
7.4.70.0120.00616.40
7.4.60.0200.00316.17
7.4.50.0000.00516.42
7.4.40.0100.00616.41
7.4.30.0050.01116.50
7.4.00.0070.00714.87
7.3.330.0030.00313.10
7.3.320.0050.00013.03
7.3.310.0000.00716.13
7.3.300.0000.00716.23
7.3.290.0110.00316.16
7.3.280.0060.01116.21
7.3.270.0080.00917.40
7.3.260.0070.01116.05
7.3.250.0090.00916.16
7.3.240.0110.01116.58
7.3.230.0030.01316.39
7.3.210.0090.00916.49
7.3.200.0160.00319.39
7.3.190.0160.00616.12
7.3.180.0040.01116.22
7.3.170.0030.01316.30
7.3.160.0090.00616.50
7.3.120.0090.00914.44
7.3.10.0110.00316.20
7.3.00.0150.00416.23
7.2.330.0140.00716.59
7.2.320.0030.01616.64
7.2.310.0100.00716.64
7.2.300.0070.01016.29
7.2.290.0130.00916.62
7.2.130.0130.00316.53
7.2.120.0070.01416.57
7.2.110.0160.00816.23
7.2.100.0120.00616.59
7.2.90.0110.00616.67
7.2.80.0070.01116.64
7.2.70.0090.00916.50
7.2.60.0030.00916.75
7.2.50.0110.01116.49
7.2.40.0060.00616.56
7.2.30.0100.00316.29
7.2.20.0000.01116.61
7.2.10.0120.00316.70
7.2.00.0050.01018.21
7.1.250.0120.00415.30
7.1.200.0060.00615.83
7.1.100.0000.01217.89
7.1.70.0110.00016.92
7.1.60.0170.00319.25
7.1.50.0030.01016.86
7.1.00.0000.08022.36
7.0.200.0040.00416.73
7.0.140.0100.06722.00
7.0.60.0100.08319.93
7.0.50.0100.07317.79
7.0.40.0030.08020.30
7.0.30.0200.05020.12
7.0.20.0400.06320.34
7.0.10.0100.08320.00
7.0.00.0030.09020.19
5.6.280.0100.06720.92
5.6.210.0070.04020.63
5.6.200.0070.04718.12
5.6.190.0170.07720.43
5.6.180.0100.04720.41
5.6.170.0130.08720.52
5.6.160.0100.08320.48
5.6.150.0030.05718.18
5.6.140.0070.03718.15
5.6.130.0100.03718.14
5.6.120.0170.07321.02
5.6.110.0100.08320.95
5.6.100.0030.09020.99
5.6.90.0070.09020.98
5.6.80.0030.05020.53
5.5.350.0230.07320.39
5.5.340.0070.07717.96
5.5.330.0030.04020.40
5.5.320.0330.06720.41
5.5.310.0400.05020.28
5.5.300.0030.06018.02
5.5.290.0170.06318.02
5.5.280.0030.04720.84
5.5.270.0070.08720.78
5.5.260.0170.07720.86
5.5.250.0100.08320.49
5.5.240.0070.02720.11
5.4.450.0170.03719.43
5.4.440.0270.04019.13
5.4.430.0170.05319.20
5.4.420.0270.04019.41
5.4.410.0170.03719.39
5.4.400.0370.02719.23
5.4.390.0330.03718.93
5.4.380.0200.03319.13
5.4.370.0200.03319.20
5.4.360.0270.03019.15
5.4.350.0170.03719.09
5.4.340.0100.05319.06
5.4.320.0170.03718.94
5.4.310.0230.03019.19
5.4.300.0200.04318.77
5.4.290.0170.03719.23
5.4.280.0170.04019.24
5.4.270.0330.05019.15
5.4.260.0200.04719.23
5.4.250.0170.03719.14
5.4.240.0270.04018.93
5.4.230.0170.03718.77
5.4.220.0230.03019.07
5.4.210.0130.04019.09
5.4.200.0170.03718.88
5.4.190.0170.03718.88
5.4.180.0300.03319.11
5.4.170.0170.05319.07
5.4.160.0170.03719.20
5.4.150.0230.04019.21
5.4.140.0230.05316.29
5.4.130.0370.02716.31
5.4.120.0130.03716.45
5.4.110.0170.07316.49
5.4.100.0200.03716.18
5.4.90.0100.04016.47
5.4.80.0270.03716.37
5.4.70.0200.05016.17
5.4.60.0170.03316.50
5.4.50.0400.05016.45
5.4.40.0200.03016.43
5.4.30.0130.04016.37
5.4.20.0200.04016.42
5.4.10.0230.04716.36
5.4.00.0130.03715.78
5.3.290.0200.03314.57
5.3.280.0170.03714.54
5.3.270.0270.06714.55
5.3.260.0130.05014.70
5.3.250.0200.05014.56
5.3.240.0230.04014.70
5.3.230.0200.04014.43
5.3.220.0200.03314.57
5.3.210.0200.04314.52
5.3.200.0230.04014.47
5.3.190.0200.03314.51
5.3.180.0070.04314.58
5.3.170.0170.03714.51
5.3.160.0230.06314.66
5.3.150.0170.03714.51
5.3.140.0400.06714.50
5.3.130.0230.04014.42
5.3.120.0130.05714.38
5.3.110.0200.05714.38
5.3.100.0170.05313.88
5.3.90.0330.04313.95
5.3.80.0170.05313.84
5.3.70.0200.05713.81
5.3.60.0170.04313.80
5.3.50.0230.07313.72
5.3.40.0230.04313.88
5.3.30.0230.04313.86
5.3.20.0470.05313.54
5.3.10.0130.04013.45
5.3.00.0200.04013.62
5.2.170.0200.05311.15
5.2.160.0230.02711.17
5.2.150.0170.04311.20
5.2.140.0130.03711.00
5.2.130.0170.02711.05
5.2.120.0200.04710.98
5.2.110.0070.04310.96
5.2.100.0200.03311.15
5.2.90.0170.06311.04
5.2.80.0170.04010.94
5.2.70.0200.05711.14
5.2.60.0230.05310.89
5.2.50.0230.04010.87
5.2.40.0170.05011.07
5.2.30.0200.06011.02
5.2.20.0100.03010.90
5.2.10.0130.05310.76
5.2.00.0170.03710.78
5.1.60.0070.0379.89
5.1.50.0130.02310.07
5.1.40.0200.0179.91
5.1.30.0170.04310.49
5.1.20.0130.05310.25
5.1.10.0170.04710.04
5.1.00.0170.0279.94
5.0.50.0100.0408.49
5.0.40.0070.0408.29
5.0.30.0070.0338.09
5.0.20.0130.0178.12
5.0.10.0100.0408.25
5.0.00.0130.0408.14
4.4.90.0100.0377.88
4.4.80.0130.0237.88
4.4.70.0130.0277.88
4.4.60.0130.0207.88
4.4.50.0130.0337.88
4.4.40.0100.0507.88
4.4.30.0170.0177.88
4.4.20.0100.0307.88
4.4.10.0130.0307.88
4.4.00.0130.0307.88
4.3.110.0300.0307.88
4.3.100.0100.0177.88
4.3.90.0130.0307.88
4.3.80.0070.0437.88
4.3.70.0030.0307.88
4.3.60.0300.0307.88
4.3.50.0030.0277.88
4.3.40.0130.0437.88
4.3.30.0030.0377.88
4.3.20.0030.0207.88
4.3.10.0000.0177.88
4.3.00.0000.0337.88

preferences:
60.24 ms | 401 KiB | 5 Q