3v4l.org

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

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)
8.3.60.0110.00416.36
8.3.50.0040.01116.13
8.3.40.0130.00318.41
8.3.30.0110.00318.51
8.3.20.0000.00720.33
8.3.10.0040.00421.47
8.3.00.0080.00019.56
8.2.180.0100.00318.41
8.2.170.0140.00422.96
8.2.160.0160.00320.57
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00017.50
8.2.110.0070.00322.25
8.2.100.0120.00017.63
8.2.90.0000.00819.05
8.2.80.0040.00417.97
8.2.70.0060.00317.38
8.2.60.0000.00817.91
8.2.50.0080.00018.07
8.2.40.0080.00021.06
8.2.30.0090.00017.93
8.2.20.0030.00617.61
8.2.10.0030.00518.05
8.2.00.0030.00517.96
8.1.280.0150.00625.92
8.1.270.0050.00321.98
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0090.00022.30
8.1.230.0040.00817.42
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0070.00317.23
8.1.190.0030.00517.10
8.1.180.0060.00318.10
8.1.170.0000.00818.46
8.1.160.0030.00522.07
8.1.150.0040.00418.81
8.1.140.0000.00717.31
8.1.130.0000.00817.58
8.1.120.0000.00717.22
8.1.110.0000.01117.33
8.1.100.0040.00417.36
8.1.90.0050.00217.41
8.1.80.0000.00817.36
8.1.70.0000.00717.28
8.1.60.0060.00317.50
8.1.50.0000.00817.34
8.1.40.0080.00017.48
8.1.30.0080.00017.47
8.1.20.0000.00817.46
8.1.10.0040.00417.29
8.1.00.0000.00817.26
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00318.31
8.0.270.0050.00217.20
8.0.260.0060.00017.10
8.0.250.0030.00316.79
8.0.240.0050.00516.84
8.0.230.0000.00716.85
8.0.220.0000.00716.67
8.0.210.0060.00316.83
8.0.200.0030.00316.94
8.0.190.0030.00516.87
8.0.180.0060.00316.83
8.0.170.0060.00316.83
8.0.160.0030.00516.73
8.0.150.0000.00716.78
8.0.140.0050.00316.67
8.0.130.0060.00013.27
8.0.120.0030.00716.77
8.0.110.0030.00516.74
8.0.100.0050.00316.88
8.0.90.0000.00716.69
8.0.80.0090.01216.86
8.0.70.0070.00016.65
8.0.60.0050.00216.88
8.0.50.0070.00016.65
8.0.30.0110.00816.82
8.0.20.0120.00617.40
8.0.10.0080.00016.89
8.0.00.0080.01016.74
7.4.330.0030.00315.16
7.4.320.0000.00616.45
7.4.300.0040.00416.35
7.4.290.0000.00716.48
7.4.280.0060.00316.45
7.4.270.0000.00716.33
7.4.260.0000.00716.43
7.4.250.0000.00916.34
7.4.240.0030.00316.40
7.4.230.0030.00316.62
7.4.220.0110.00716.28
7.4.210.0100.00516.55
7.4.200.0030.00316.55
7.4.160.0100.01016.43
7.4.150.0180.00417.40
7.4.140.0060.01317.86
7.4.130.0120.00816.56
7.4.120.0080.01016.38
7.4.110.0070.01016.28
7.4.100.0110.01416.45
7.4.90.0110.00616.31
7.4.80.0040.01219.39
7.4.70.0060.01316.17
7.4.60.0090.00616.32
7.4.50.0000.00916.51
7.4.40.0090.00616.35
7.4.30.0130.01016.46
7.4.00.0050.01114.92
7.3.330.0000.00613.06
7.3.320.0000.00613.06
7.3.310.0000.00816.08
7.3.300.0040.00416.16
7.3.290.0030.00316.07
7.3.280.0120.00516.14
7.3.270.0060.01217.40
7.3.260.0090.00916.13
7.3.250.0110.00616.09
7.3.240.0080.00816.14
7.3.230.0140.00316.39
7.3.210.0140.01116.34
7.3.200.0100.01016.19
7.3.190.0130.00416.17
7.3.180.0060.01016.09
7.3.170.0080.00916.27
7.3.160.0030.01316.23
7.3.120.0090.00814.33
7.3.110.0050.01014.66
7.3.100.0080.01014.46
7.3.90.0070.01014.65
7.3.80.0050.01014.69
7.3.70.0050.00814.66
7.3.60.0040.00514.68
7.3.50.0060.00314.63
7.3.40.0040.00914.47
7.3.30.0110.00314.59
7.3.20.0040.00716.51
7.3.10.0070.00816.59
7.3.00.0060.00616.39
7.2.330.0150.00316.31
7.2.320.0090.00916.48
7.2.310.0060.01116.42
7.2.300.0170.00316.19
7.2.290.0140.01116.64
7.2.250.0150.00014.55
7.2.240.0080.01014.86
7.2.230.0080.00715.01
7.2.220.0070.01014.88
7.2.210.0040.01114.86
7.2.200.0130.00215.01
7.2.190.0050.00914.93
7.2.180.0060.00614.88
7.2.170.0090.00514.78
7.2.160.0090.00614.97
7.2.150.0070.00416.73
7.2.140.0120.00316.86
7.2.130.0000.01816.75
7.2.120.0100.00316.76
7.2.110.0060.00616.77
7.2.100.0020.01316.78
7.2.90.0090.00916.77
7.2.80.0100.00716.67
7.2.70.0110.00316.80
7.2.60.0040.01116.79
7.2.50.0030.01016.70
7.2.40.0090.00616.41
7.2.30.0070.00716.77
7.2.20.0090.00616.77
7.2.10.0000.01116.73
7.2.00.0020.00818.14
7.1.330.0060.00815.81
7.1.320.0030.00915.72
7.1.310.0020.00915.60
7.1.300.0020.01015.63
7.1.290.0060.00615.68
7.1.280.0060.00715.82
7.1.270.0060.00815.79
7.1.260.0090.00515.61
7.1.250.0070.01015.94
7.1.200.0000.01315.67
7.1.100.0180.00318.15
7.1.70.0040.00417.09
7.1.60.0100.01420.03
7.1.50.0040.01916.84
7.1.00.0100.07022.31
7.0.200.0060.00616.68
7.0.60.0130.07719.95
7.0.50.0100.05317.81
7.0.40.0070.06020.23
7.0.30.0370.06720.21
7.0.20.0330.07720.02
7.0.10.0100.04720.00
7.0.00.0170.07319.99
5.6.280.0000.05721.06
5.6.210.0170.07320.70
5.6.200.0070.04018.16
5.6.190.0170.06320.27
5.6.180.3200.04720.61
5.6.170.0270.05020.44
5.6.160.0070.08320.47
5.6.150.0070.08318.14
5.6.140.0030.04018.15
5.6.130.0070.08718.22
5.6.120.0030.04721.11
5.6.110.0070.08320.98
5.6.100.0030.09020.95
5.6.90.0100.07021.00
5.6.80.0100.05320.52
5.6.70.3430.04020.36
5.5.350.0030.05320.31
5.5.340.0230.03718.02
5.5.330.0070.04320.23
5.5.320.0370.07320.51
5.5.310.0300.04320.27
5.5.300.0130.04018.02
5.5.290.0070.04017.97
5.5.280.0170.07320.76
5.5.270.0100.08320.87
5.5.260.0100.07320.71
5.5.250.0000.07720.58
5.5.240.0230.07320.15
5.4.450.0670.05319.32
5.4.440.0670.05019.44
5.4.430.0530.06319.52
5.4.420.0530.06319.45
5.4.410.0800.06019.37
5.4.400.0700.04319.30
5.4.390.0730.05719.11
5.4.380.0570.05719.08
5.4.370.0500.05019.17
5.4.360.0730.04719.17
5.4.350.0700.05018.77
5.4.340.0470.06019.18
5.4.320.0770.04319.20
5.4.310.0770.05718.77
5.4.300.0700.04718.77
5.4.290.0630.05019.14
5.4.280.0700.04718.80
5.4.270.0630.05019.12
5.4.260.0630.05019.12
5.4.250.0500.06319.27
5.4.240.0400.05318.76
5.4.230.0400.05019.16
5.4.220.0730.04319.13
5.4.210.0600.05719.17
5.4.200.0570.05716.97
5.4.190.0670.04018.95
5.4.180.0630.05018.91
5.4.170.0630.05318.95
5.4.160.0470.06018.92
5.4.150.0600.05319.25
5.4.140.0530.04716.34
5.4.130.0700.04316.28
5.4.120.0770.04316.43
5.4.110.0730.04316.28
5.4.100.0470.07016.32
5.4.90.0770.05016.21
5.4.80.0700.04316.34
5.4.70.0700.04716.29
5.4.60.0530.06016.20
5.4.50.0570.04316.18
5.4.40.0500.05016.43
5.4.30.0770.04316.45
5.4.20.0800.03316.28
5.4.10.0570.04716.15
5.4.00.0970.04316.03

preferences:
72.29 ms | 400 KiB | 5 Q