3v4l.org

run code in 500+ PHP versions simultaneously
<?php $a = []; $b = (string)$a; echo substr($b, 1);

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)
8.5.70.0090.00516.66
8.5.60.0110.00816.82
8.5.50.0060.00816.73
8.5.30.0100.00721.32
8.5.20.0090.00819.76
8.5.10.0080.00616.75
8.5.00.0110.01019.84
8.4.220.0040.00519.54
8.4.210.0130.00919.54
8.4.180.0140.00819.55
8.4.170.0180.00423.79
8.4.160.0120.01023.66
8.4.150.0090.00316.90
8.4.140.0160.00517.71
8.4.130.0090.00818.55
8.4.120.0050.00317.98
8.4.110.0100.01017.95
8.4.100.0110.01017.80
8.4.90.0140.01120.66
8.4.80.0140.00718.87
8.4.70.0150.00618.85
8.4.60.0130.00718.77
8.4.50.0110.01020.44
8.4.40.0130.00619.28
8.4.30.0060.00317.89
8.4.20.0070.00720.32
8.4.10.0040.00717.85
8.3.310.0100.00218.43
8.3.300.0120.00920.72
8.3.290.0100.00920.68
8.3.280.0150.00718.36
8.3.270.0110.00816.56
8.3.260.0090.01216.64
8.3.250.0100.00818.35
8.3.240.0100.00916.63
8.3.230.0140.00616.36
8.3.220.0120.00618.73
8.3.210.0060.00116.55
8.3.200.0060.00216.65
8.3.190.0040.00418.77
8.3.180.0090.00918.95
8.3.170.0040.01520.79
8.3.160.0070.00718.66
8.3.150.0110.00717.13
8.3.140.0140.00017.11
8.3.130.0040.00416.75
8.3.120.0060.00318.81
8.3.110.0090.00920.94
8.3.100.0050.00324.06
8.3.90.0070.00726.77
8.3.80.0040.00416.75
8.3.70.0070.00716.58
8.3.60.0110.00818.23
8.3.50.0120.00117.55
8.3.40.0100.00719.02
8.3.30.0090.00618.71
8.3.20.0050.00318.98
8.3.10.0000.00823.71
8.3.00.0040.00423.65
8.2.310.0120.00718.09
8.2.300.0120.00820.50
8.2.290.0100.00816.48
8.2.280.0090.01018.21
8.2.270.0100.01016.43
8.2.260.0030.00616.92
8.2.250.0000.00816.60
8.2.240.0040.00419.06
8.2.230.0100.01022.58
8.2.220.0110.00437.54
8.2.210.0140.00426.77
8.2.200.0060.00316.63
8.2.190.0130.00316.63
8.2.180.0070.01325.92
8.2.170.0070.00722.96
8.2.160.0130.00320.21
8.2.150.0000.00824.18
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0090.00318.89
8.2.110.0030.00620.46
8.2.100.0040.00717.88
8.2.90.0000.00820.45
8.2.80.0030.00517.97
8.2.70.0060.00318.04
8.2.60.0050.00717.91
8.2.50.0040.00419.26
8.2.40.0000.00820.80
8.2.30.0040.00419.15
8.2.20.0030.00618.04
8.2.10.0070.00019.31
8.2.00.0030.00319.47
8.1.340.0080.01121.74
8.1.330.0090.00220.12
8.1.320.0130.00617.89
8.1.310.0080.00016.80
8.1.300.0090.00615.97
8.1.290.0040.00418.88
8.1.280.0100.01025.92
8.1.270.0040.00422.15
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0090.00023.86
8.1.230.0060.00620.89
8.1.220.0000.00817.79
8.1.210.0030.00619.02
8.1.200.0040.00416.98
8.1.190.0000.00817.00
8.1.180.0040.00419.03
8.1.170.0000.00818.52
8.1.160.0000.00819.01
8.1.150.0040.00418.82
8.1.140.0070.00019.29
8.1.130.0040.00419.00
8.1.120.0070.00017.34
8.1.110.0040.00417.32
8.1.100.0050.00217.27
8.1.90.0040.00417.44
8.1.80.0000.00817.27
8.1.70.0040.00417.42
8.1.60.0040.00417.47
8.1.50.0040.00417.38
8.1.40.0000.00817.41
8.1.30.0060.00517.57
8.1.20.0000.00917.66
8.1.10.0050.00217.39
8.1.00.0040.00417.37
8.0.300.0040.00419.93
8.0.290.0000.00816.63
8.0.280.0030.00318.35
8.0.270.0030.00316.87
8.0.260.0000.00617.27
8.0.250.0000.00716.89
8.0.240.0000.00617.02
8.0.230.0040.00416.93
8.0.220.0070.00316.88
8.0.210.0000.00716.88
8.0.200.0030.00316.93
8.0.190.0050.00216.91
8.0.180.0060.00316.93
8.0.170.0050.00316.87
8.0.160.0070.00016.94
8.0.150.0000.01016.80
8.0.140.0040.00416.68
8.0.130.0050.00013.27
8.0.120.0080.00016.89
8.0.110.0030.00616.72
8.0.100.0040.00416.73
8.0.90.0000.00716.87
8.0.80.0110.01116.89
8.0.70.0040.00416.86
8.0.60.0000.00716.93
8.0.50.0020.00516.79
8.0.30.0090.00717.14
8.0.20.0120.00617.40
8.0.10.0050.00316.98
8.0.00.0060.01216.68
7.4.330.0000.00515.55
7.4.320.0000.00616.59
7.4.300.0000.00616.51
7.4.290.0000.00716.49
7.4.280.0060.00316.64
7.4.270.0070.00016.65
7.4.260.0030.00316.58
7.4.250.0040.00416.61
7.4.240.0070.00016.65
7.4.230.0040.00416.64
7.4.220.0030.00516.63
7.4.210.0110.00516.64
7.4.200.0000.00716.49
7.4.160.0080.00716.56
7.4.140.0120.00717.86
7.4.130.0160.00316.43
7.4.120.0110.00916.49
7.4.110.0100.00716.59
7.4.100.0100.00716.57
7.4.90.0090.00916.56
7.4.80.0110.01019.39
7.4.70.0130.00316.50
7.4.60.0040.01116.54
7.4.50.0060.00616.42
7.4.40.0100.01016.74
7.4.00.0110.00414.80
7.3.330.0000.00512.95
7.3.320.0000.00513.10
7.3.310.0000.00716.24
7.3.300.0040.00416.15
7.3.290.0030.00316.10
7.3.280.0110.00916.20
7.3.260.0090.01016.36
7.3.240.0090.01116.28
7.3.230.0100.00716.34
7.3.210.0100.01016.34
7.3.200.0080.00816.25
7.3.190.0090.00916.29
7.3.180.0040.01216.49
7.3.170.0120.00916.43
7.3.160.0040.01116.41
7.3.120.0080.00914.73
7.3.110.0040.01414.68
7.3.100.0050.00914.77
7.3.90.0080.00514.70
7.3.80.0090.00414.58
7.3.70.0060.00614.77
7.3.60.0070.00514.71
7.3.50.0040.00814.56
7.3.40.0030.01114.60
7.3.30.0020.01214.69
7.3.20.0090.00416.53
7.3.10.0080.00516.37
7.3.00.0080.00516.65
7.2.330.0070.01816.25
7.2.320.0140.00516.48
7.2.310.0170.00016.54
7.2.300.0100.01016.74
7.2.290.0080.01216.29
7.2.250.0080.00714.75
7.2.240.0090.01014.68
7.2.230.0030.00914.81
7.2.220.0070.00714.79
7.2.210.0100.00814.89
7.2.200.0090.00514.92
7.2.190.0020.01114.69
7.2.180.0080.00614.80
7.2.170.0110.00314.93
7.2.160.0110.00714.75
7.2.150.0060.01016.85
7.2.140.0030.00716.79
7.2.130.0000.01416.70
7.2.120.0090.00616.85
7.2.110.0110.00316.90
7.2.100.0090.00916.64
7.2.90.0080.00816.65
7.2.80.0070.00716.64
7.2.70.0060.00816.72
7.2.60.0080.00516.85
7.2.50.0020.01416.84
7.2.40.0070.01216.83
7.2.30.0020.01116.86
7.2.20.0090.00716.64
7.2.10.0080.00716.79
7.2.00.0030.00816.76
7.1.330.0020.01315.77
7.1.320.0020.01215.78
7.1.310.0040.01115.82
7.1.300.0050.00815.66
7.1.290.0070.00515.66
7.1.280.0060.00515.62
7.1.270.0100.00615.58
7.1.260.0050.00515.61
7.1.250.0090.00615.67
7.1.240.0070.01115.75
7.1.230.0100.00715.83
7.1.220.0070.00715.85
7.1.210.0040.01115.80
7.1.200.0050.01015.74
7.1.190.0100.00315.50
7.1.180.0100.00315.63
7.1.170.0050.01015.83
7.1.160.0060.00815.73
7.1.150.0090.00315.59
7.1.140.0070.00715.74
7.1.130.0020.01315.66
7.1.120.0060.00315.77
7.1.110.0050.00615.72
7.1.100.0000.01215.64
7.1.90.0100.00715.73
7.1.80.0060.00815.81
7.1.70.0030.01015.65
7.1.60.0130.00824.77
7.1.50.0160.00624.54
7.1.40.0140.00824.70
7.1.30.0130.01024.64
7.1.20.0140.00924.58
7.1.10.0060.00815.70
7.1.00.0020.01215.66
7.0.330.0070.00415.28
7.0.320.0080.00815.20
7.0.310.0070.00715.45
7.0.300.0030.00615.18
7.0.290.0100.00715.38
7.0.280.0000.00815.41
7.0.270.0070.01015.41
7.0.260.0060.00315.41
7.0.250.0060.00615.53
7.0.240.0060.00315.68
7.0.230.0060.00915.39
7.0.220.0070.00715.30
7.0.210.0030.01015.14
7.0.200.0040.00415.38
7.0.190.0030.01015.16
7.0.180.0100.00315.42
7.0.170.0030.01015.62
7.0.160.0030.01015.43
7.0.150.0040.01115.48
7.0.140.0070.01015.40
7.0.130.0030.01015.47
7.0.120.0120.00315.08
7.0.110.0130.00015.33
7.0.100.0040.00715.20
7.0.90.0000.01215.32
7.0.80.0060.00315.31
7.0.70.0060.00315.52
7.0.60.0130.00015.43
7.0.50.0000.01515.42
7.0.40.0100.00713.42
7.0.30.0100.00313.46
7.0.20.0070.01013.41
7.0.10.0030.00713.62
7.0.00.0110.00413.52
5.6.400.0040.01213.98
5.6.390.0070.01014.34
5.6.380.0060.00314.45
5.6.370.0070.00714.43
5.6.360.0060.01114.27
5.6.350.0060.00314.23
5.6.340.0030.01014.10
5.6.330.0030.00914.58
5.6.320.0050.00314.49
5.6.310.0060.00614.42
5.6.300.0070.00714.12
5.6.290.0040.00414.07
5.6.280.0030.01214.64
5.6.270.0070.00714.41
5.6.260.0030.00914.30
5.6.250.0100.00314.28
5.6.240.0120.00314.43
5.6.230.0030.01014.40
5.6.220.0060.00614.21
5.6.210.0000.01514.23
5.6.200.0100.00414.30
5.6.190.0030.00914.34
5.6.180.0120.00414.51
5.6.170.0060.00614.36
5.6.160.0120.00314.16
5.6.150.0040.01114.37
5.6.140.0040.01214.46
5.6.130.0070.00414.56
5.6.120.0060.00614.27
5.6.110.0060.00314.49
5.6.100.0050.00314.04
5.6.90.0080.00413.95
5.6.80.0060.00614.29
5.6.70.0060.00614.20
5.6.60.0000.01514.13
5.6.50.0030.01014.42
5.6.40.0040.00714.24
5.6.30.0040.01114.27
5.6.20.0060.01014.20
5.6.10.0040.00714.26
5.6.00.0040.00414.14

preferences:
115.88 ms | 1955 KiB | 5 Q