3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f(string $str): void { if ($a = explode("-", $str)) { echo "reached if: ", var_dump($a), "\n"; } else { echo "unreached else\n"; } } f(""); f("a"); f("a-b-c");

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)
8.3.60.0110.00416.38
8.3.50.0070.00718.45
8.3.40.0110.00420.23
8.3.30.0150.00018.54
8.3.20.0070.00024.18
8.3.10.0050.00324.66
8.3.00.0070.00026.16
8.2.180.0100.00725.92
8.2.170.0180.00318.82
8.2.160.0090.00622.96
8.2.150.0050.00325.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00421.11
8.2.110.0040.00420.32
8.2.100.0090.00317.78
8.2.90.0040.00417.63
8.2.80.0040.00418.52
8.2.70.0040.00417.36
8.2.60.0040.00418.05
8.2.50.0110.00018.07
8.2.40.0050.00318.22
8.2.30.0080.00018.11
8.2.20.0070.00020.49
8.2.10.0040.00417.89
8.2.00.0000.00919.05
8.1.280.0040.01125.92
8.1.270.0070.01022.14
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.82
8.1.230.0000.01123.88
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0090.00017.11
8.1.190.0090.00017.22
8.1.180.0050.00318.10
8.1.170.0060.00318.76
8.1.160.0000.00718.82
8.1.150.0000.00718.57
8.1.140.0040.00417.32
8.1.130.0070.00017.32
8.1.120.0150.00417.31
8.1.110.0140.00517.47
8.1.100.0120.00617.36
8.1.90.0140.00217.43
8.1.80.0130.00517.35
8.1.70.0130.00817.29
8.1.60.0160.00317.55
8.1.50.0140.00617.61
8.1.40.0120.01017.61
8.1.30.0190.00017.69
8.1.20.0110.00717.52
8.1.10.0190.00317.44
8.1.00.0160.00417.46
8.0.300.0030.00718.77
8.0.290.0000.00716.75
8.0.280.0070.00018.43
8.0.270.0070.00016.73
8.0.260.0050.00316.68
8.0.250.0100.00716.87
8.0.240.0130.00416.68
8.0.230.0110.00516.82
8.0.220.0130.00316.74
8.0.210.0120.00816.78
8.0.200.0150.00016.68
8.0.190.0150.00016.84
8.0.180.0100.00516.84
8.0.170.0110.00516.82
8.0.160.0140.00516.80
8.0.150.0120.00416.63
8.0.140.0110.00416.73
8.0.130.0050.01016.78
8.0.120.0080.00816.79
8.0.110.0170.00016.73
8.0.100.0100.00516.66
8.0.90.0000.01516.71
8.0.80.0150.00016.60
8.0.70.0090.00616.59
8.0.60.0080.00616.78
8.0.50.0110.00616.71
8.0.30.0080.00816.72
8.0.20.0100.00716.70
8.0.10.0100.00716.82
7.4.330.0100.00315.55
7.4.320.0080.00816.39
7.4.300.0140.00316.33
7.4.290.0140.00316.41
7.4.280.0160.00016.43
7.4.270.0080.00816.50
7.4.260.0140.00016.51
7.4.250.0150.00016.50
7.4.240.0110.00316.50
7.4.230.0000.00916.44
7.4.220.0080.00016.36
7.4.210.0070.00316.39
7.4.200.0000.01016.41
7.4.190.0060.00316.06
7.4.180.0040.00816.63
7.4.160.0000.01016.45
7.4.150.0050.00516.36
7.4.140.0000.00916.31
7.4.130.0050.00516.36
7.4.120.0060.00416.41
7.4.110.0080.00416.29
7.4.100.0030.00616.33
7.4.90.0030.00616.26
7.4.80.0110.00016.32
7.4.70.0030.00616.38
7.4.60.0070.00516.37
7.4.50.0050.00516.26
7.4.40.0050.00516.37
7.4.30.0020.00816.05
7.4.20.0040.00816.38
7.4.10.0100.00016.32
7.4.00.0000.01016.28

preferences:
50.57 ms | 401 KiB | 5 Q