3v4l.org

run code in 300+ PHP versions simultaneously
<?php function try_string_to_int($value): ?int { if (is_string($value) && $value === (string)(int) $value) { return (int) $value; } return null; } var_dump(try_string_to_int('foo')); var_dump(try_string_to_int('1e10')); var_dump(try_string_to_int('42')); var_dump(try_string_to_int('0')); var_dump(try_string_to_int('-500'));

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)
8.5.10.0110.00619.54
8.5.00.0070.01419.95
8.4.150.0010.00114.05
8.4.140.0110.00917.67
8.4.130.0080.01520.33
8.4.120.0050.00517.71
8.4.110.0130.00817.96
8.4.100.0120.00917.94
8.4.90.0140.00520.45
8.4.80.0110.00520.77
8.4.70.0080.01118.91
8.4.60.0140.00618.83
8.4.50.0130.00720.42
8.4.40.0120.00817.71
8.4.30.0150.00020.75
8.4.20.0040.01622.21
8.4.10.0060.00323.72
8.3.280.0080.01118.31
8.3.270.0160.00916.45
8.3.260.0050.00616.43
8.3.250.0080.00316.43
8.3.240.0110.00816.40
8.3.230.0120.01116.64
8.3.220.0090.00819.02
8.3.210.0130.00616.73
8.3.200.0030.00616.73
8.3.190.0120.00717.03
8.3.180.0100.00718.94
8.3.170.0070.01018.88
8.3.160.0100.01016.56
8.3.150.0110.00417.19
8.3.140.0070.00720.58
8.3.130.0090.00018.33
8.3.120.0040.00418.88
8.3.110.0060.00320.94
8.3.100.0040.00824.06
8.3.90.0030.00526.77
8.3.80.0030.00618.43
8.3.70.0140.00716.63
8.3.60.0110.01116.50
8.3.50.0120.00918.60
8.3.40.0030.01021.90
8.3.30.0140.00020.18
8.3.20.0000.00724.18
8.3.10.0040.00424.66
8.3.00.0000.00826.16
8.2.290.0140.00516.43
8.2.280.0080.01120.04
8.2.270.0110.00816.80
8.2.260.0080.00016.87
8.2.250.0100.01018.27
8.2.240.0030.00617.29
8.2.230.0060.00322.58
8.2.220.0110.00437.54
8.2.210.0080.00826.77
8.2.200.0030.00718.17
8.2.190.0160.00918.29
8.2.180.0070.01016.38
8.2.170.0080.00818.87
8.2.160.0130.00022.96
8.2.150.0050.00225.66
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00419.71
8.2.110.0040.00422.26
8.2.100.0030.00717.91
8.2.90.0000.00817.78
8.2.80.0050.00319.20
8.2.70.0150.00317.25
8.2.60.0180.00017.38
8.2.50.0180.00017.50
8.2.40.0110.00617.38
8.2.30.0140.00317.38
8.2.20.0130.00317.38
8.2.10.0160.00017.25
8.2.00.0170.00017.25
8.1.330.0120.00716.40
8.1.320.0150.00517.77
8.1.310.0110.00416.75
8.1.300.0090.00917.83
8.1.290.0060.00330.84
8.1.280.0140.00725.92
8.1.270.0000.00724.66
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00523.93
8.1.230.0040.00821.03
8.1.220.0040.00417.74
8.1.210.0090.00018.79
8.1.200.0160.00017.00
8.1.190.0080.00817.22
8.1.180.0180.00617.00
8.1.170.0110.00517.00
8.1.160.0100.00717.13
8.1.150.0130.00616.86
8.1.140.0120.00417.13
8.1.130.0100.00617.38
8.1.120.0170.00017.25
8.1.110.0090.00617.10
8.1.100.0140.00317.23
8.1.90.0060.01017.38
8.1.80.0100.00517.35
8.1.70.0120.00417.00
8.1.60.0100.00817.25
8.1.50.0120.00417.25
8.1.40.0140.00317.25
8.1.30.0000.01917.25
8.1.20.0130.00417.50
8.1.10.0130.00517.25
8.1.00.0140.00716.96
8.0.300.0030.00520.16
8.0.290.0190.00016.58
8.0.280.0140.00216.75
8.0.270.0170.00016.63
8.0.260.0140.00316.63
8.0.250.0170.00016.58
8.0.240.0110.00616.58
8.0.230.0050.01116.62
8.0.220.0140.00316.63
8.0.210.0160.00016.58
8.0.200.0110.00516.58
8.0.190.0120.00616.58
8.0.180.0100.00716.58
8.0.170.0100.00616.59
8.0.160.0200.00016.58
8.0.150.0090.00916.58
8.0.140.0160.00016.58
8.0.130.0080.00816.58
8.0.120.0100.00716.58
8.0.110.0120.00416.72
8.0.100.0130.00416.58
8.0.90.0100.00516.58
8.0.80.0120.00516.63
8.0.70.0100.00716.71
8.0.60.0100.00616.58
8.0.50.0080.00816.63
8.0.30.0090.00916.58
8.0.20.0140.00316.58
8.0.10.0140.00216.75

preferences:
33.54 ms | 403 KiB | 5 Q