3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 0; $a = substr($a, 0, 10); var_dump($a); var_dump(gettype('0'));

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)
8.3.60.0000.01416.63
8.3.50.0090.00921.13
8.3.40.0030.01218.63
8.3.30.0110.00418.43
8.3.20.0040.00420.26
8.3.10.0040.00421.77
8.3.00.0000.00819.56
8.2.180.0110.00818.04
8.2.170.0140.00022.96
8.2.160.0140.00320.35
8.2.150.0050.00324.18
8.2.140.0030.00524.66
8.2.130.0050.00526.16
8.2.120.0050.00317.50
8.2.110.0030.00622.08
8.2.100.0040.00817.75
8.2.90.0000.00719.23
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0030.00517.93
8.2.50.0000.00818.07
8.2.40.0040.00421.08
8.2.30.0090.00017.86
8.2.20.0030.00617.58
8.2.10.0000.00817.98
8.2.00.0070.00018.09
8.1.280.0110.00425.92
8.1.270.0040.00420.27
8.1.260.0000.00826.35
8.1.250.0050.00328.09
8.1.240.0070.00322.42
8.1.230.0060.00617.42
8.1.220.0060.00317.74
8.1.210.0060.00318.77
8.1.200.0070.00317.23
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0040.00418.33
8.1.160.0030.00521.99
8.1.150.0040.00418.81
8.1.140.0050.00517.26
8.1.130.0030.00317.63
8.1.120.0040.00417.43
8.1.110.0080.00317.39
8.1.100.0000.00717.28
8.1.90.0030.00517.34
8.1.80.0000.00817.37
8.1.70.0030.00317.34
8.1.60.0030.00617.48
8.1.50.0000.00717.46
8.1.40.0000.00717.44
8.1.30.0030.00517.55
8.1.20.0050.00317.48
8.1.10.0000.00717.35
8.1.00.0040.00417.38
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00318.42
8.0.270.0070.00017.13
8.0.260.0000.00817.09
8.0.250.0000.00716.96
8.0.240.0040.00416.81
8.0.230.0030.00316.77
8.0.220.0000.00816.78
8.0.210.0060.00316.86
8.0.200.0040.00416.80
8.0.190.0000.00716.90
8.0.180.0040.00416.73
8.0.170.0080.00016.94
8.0.160.0000.00816.89
8.0.150.0000.00816.80
8.0.140.0050.00216.79
8.0.130.0000.00513.29
8.0.120.0050.00316.88
8.0.110.0080.00016.88
8.0.100.0050.00316.89
8.0.90.0040.00416.98
8.0.80.0060.00916.86
8.0.70.0000.00716.72
8.0.60.0060.00316.79
8.0.50.0040.00416.78
8.0.30.0120.00816.92
8.0.20.0150.00517.40
8.0.10.0040.00417.11
8.0.00.0120.00816.73
7.4.330.0000.00515.08
7.4.320.0040.00416.51
7.4.300.0030.00316.39
7.4.290.0000.00816.35
7.4.280.0110.00016.42
7.4.270.0000.00716.44
7.4.260.0050.00216.41
7.4.250.0040.00416.49
7.4.240.0050.00216.54
7.4.230.0000.00716.54
7.4.220.0120.00616.64
7.4.210.0080.00616.40
7.4.200.0050.00216.25
7.4.160.0060.01016.38
7.4.150.0140.00317.40
7.4.140.0110.00917.86
7.4.130.0100.01016.47
7.4.120.0070.01016.36
7.4.110.0090.00916.41
7.4.100.0180.00416.32
7.4.90.0000.01616.44
7.4.80.0070.01019.39
7.4.70.0160.00616.27
7.4.60.0110.00716.18
7.4.50.0080.00016.21
7.4.40.0080.00816.31
7.4.30.0150.01216.29
7.4.00.0100.00714.70
7.3.330.0000.00812.98
7.3.320.0000.00512.87
7.3.310.0070.00016.06
7.3.300.0000.00716.17
7.3.290.0070.00016.02
7.3.280.0110.00816.15
7.3.270.0100.00717.40
7.3.260.0040.01316.24
7.3.250.0090.01016.24
7.3.240.0100.00716.58
7.3.230.0100.01016.39
7.3.210.0060.01216.39
7.3.200.0140.00416.29
7.3.190.0120.01016.17
7.3.180.0070.01016.25
7.3.170.0160.00716.27
7.3.160.0100.01016.14
7.3.10.0090.00316.54
7.3.00.0040.01115.98
7.2.330.0070.01016.28
7.2.320.0090.01516.55
7.2.310.0140.00716.34
7.2.300.0090.01616.31
7.2.290.0040.01516.38
7.2.130.0100.00317.00
7.2.120.0070.00716.75
7.2.110.0090.00916.61
7.2.100.0090.00916.81
7.2.90.0070.00716.52
7.2.80.0130.00716.88
7.2.70.0100.00716.91
7.2.60.0090.00316.82
7.2.50.0040.00416.82
7.2.40.0100.01016.39
7.2.30.0150.00016.72
7.2.20.0060.00616.76
7.2.10.0070.00716.59
7.2.00.0080.00817.98
7.1.250.0040.00815.48
7.1.100.0080.00318.07
7.1.70.0000.00717.13
7.1.60.0100.01420.03
7.1.50.0070.01416.97
7.1.00.0100.07022.45
7.0.200.0170.00316.63
7.0.60.0300.06719.89
7.0.50.0030.06017.80
7.0.40.0070.07719.84
7.0.30.0400.07320.16
7.0.20.0170.04720.01
7.0.10.0170.06720.18
7.0.00.0100.08720.18
5.6.280.0070.07721.11
5.6.210.0130.05020.60
5.6.200.0070.03718.10
5.6.190.0070.06020.57
5.6.180.3900.04320.63
5.6.170.0270.04020.48
5.6.160.0070.04020.52
5.6.150.0070.06318.18
5.6.140.0130.05318.04
5.6.130.0130.08018.16
5.6.120.0070.08020.98
5.6.110.0070.09321.11
5.6.100.0100.07321.00
5.6.90.0170.07321.09
5.6.80.0100.07720.41
5.5.350.0270.07320.35
5.5.340.0070.03718.01
5.5.330.0130.08020.23
5.5.320.0370.06020.41
5.5.310.0230.07720.21
5.5.300.0030.08318.02
5.5.290.0070.03717.98
5.5.280.0070.08720.88
5.5.270.0070.08720.88
5.5.260.0200.07020.96
5.5.250.0000.05020.61
5.5.240.0170.07720.31
5.4.450.0730.05019.47
5.4.440.0570.06719.46
5.4.430.0570.05719.40
5.4.420.0530.05319.40
5.4.410.0630.05019.49
5.4.400.0670.05019.12
5.4.390.0430.06019.14
5.4.380.0630.05019.29
5.4.370.0630.05318.77
5.4.360.0670.05319.16
5.4.350.0770.04319.14
5.4.340.0530.06319.14
5.4.320.0730.04718.92
5.4.310.0770.04319.15
5.4.300.0600.05319.29
5.4.290.0600.05319.13
5.4.280.0500.05319.14
5.4.270.0470.05719.25
5.4.260.0500.05719.14
5.4.250.0630.04719.16
5.4.240.0670.04719.13
5.4.230.0600.06018.97
5.4.220.0570.05718.97
5.4.210.0600.05018.85
5.4.200.0600.05016.53
5.4.190.0600.05019.01
5.4.180.0700.04318.90
5.4.170.0600.05318.81
5.4.160.0530.05718.89
5.4.150.0630.04719.09
5.4.140.0670.04316.45
5.4.130.0630.04716.22
5.4.120.0670.04316.23
5.4.110.0600.05016.43
5.4.100.0670.04316.41
5.4.90.0730.04716.22
5.4.80.0600.06016.43
5.4.70.0600.04716.25
5.4.60.0630.05016.26
5.4.50.0700.04016.40
5.4.40.0530.06016.28
5.4.30.0800.06016.27
5.4.20.0630.06016.41
5.4.10.0600.06016.41
5.4.00.0670.04715.56

preferences:
70.93 ms | 401 KiB | 5 Q