3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isset_array(&$value): bool { return @isset($value) && is_array($value); } echo $somevar; var_dump(isset_array($somevar)); echo $somevar;

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)
8.5.10.0120.00816.82
8.5.00.0100.01219.91
8.4.150.0030.00014.05
8.4.140.0130.00917.78
8.4.130.0090.01017.88
8.4.120.0160.00520.85
8.4.110.0110.00722.48
8.4.100.0100.00817.54
8.4.90.0110.00918.50
8.4.80.0130.00717.99
8.4.70.0120.00917.78
8.4.60.0120.00817.68
8.4.50.0100.01019.54
8.4.40.0100.01017.80
8.4.30.0100.01018.52
8.4.20.0130.00718.68
8.4.10.0050.00319.65
8.3.280.0110.00918.28
8.3.270.0110.00816.77
8.3.260.0110.00916.93
8.3.250.0120.00718.94
8.3.240.0110.00716.75
8.3.230.0120.00716.75
8.3.220.0090.00917.29
8.3.210.0120.00916.59
8.3.200.0030.00516.72
8.3.190.0130.00718.55
8.3.180.0080.00916.82
8.3.170.0140.00420.61
8.3.160.0060.01316.70
8.3.150.0110.00718.96
8.3.140.0050.00317.19
8.3.130.0030.00616.58
8.3.120.0030.00520.69
8.3.110.0180.00016.71
8.3.100.0030.00516.87
8.3.90.0060.00926.77
8.3.80.0060.00316.50
8.3.70.0150.00316.75
8.3.60.0110.00716.50
8.3.50.0100.00716.43
8.3.40.0140.00320.50
8.3.30.0150.00020.36
8.3.20.0000.00824.18
8.3.10.0130.00622.54
8.3.00.0200.00318.95
8.2.290.0110.00720.50
8.2.280.0050.00318.56
8.2.270.0070.01119.11
8.2.260.0080.00816.66
8.2.250.0020.00517.36
8.2.240.0030.00618.66
8.2.230.0030.00620.94
8.2.220.0040.00424.06
8.2.210.0040.00426.77
8.2.200.0060.00318.54
8.2.190.0140.00716.63
8.2.180.0070.00725.92
8.2.170.0090.01218.91
8.2.160.0060.00922.96
8.2.150.0050.00225.66
8.2.140.0090.01020.42
8.2.130.0120.00620.44
8.2.120.0160.00318.96
8.2.110.0090.00719.07
8.2.100.0140.00518.93
8.2.90.0100.00818.90
8.2.80.0050.00918.77
8.2.70.0190.00718.71
8.2.60.0110.00818.73
8.2.50.0050.01118.70
8.2.40.0060.00918.60
8.2.30.0060.00918.73
8.2.20.0110.00518.77
8.2.10.0060.00418.73
8.2.00.0070.00618.75
8.1.330.0110.00622.14
8.1.320.0150.00515.91
8.1.310.0070.01018.55
8.1.300.0080.00416.14
8.1.290.0030.00630.84
8.1.280.0040.01125.92
8.1.270.0010.00622.12
8.1.260.0050.00322.00
8.1.250.0080.00022.12
8.1.240.0060.00218.55
8.1.230.0050.00818.39
8.1.220.0040.00418.85
8.1.210.0050.00318.40
8.1.200.0030.00518.41
8.1.190.0060.00718.47
8.1.180.0060.00418.20
8.1.170.0020.00618.44
8.1.160.0120.00218.49
8.1.150.0090.00418.41
8.1.140.0060.00618.42
8.1.130.0090.00218.72
8.1.120.0030.00518.58
8.1.110.0050.00318.40
8.1.100.0100.00218.44
8.1.90.0050.00418.44
8.1.80.0040.00518.49
8.1.70.0060.00218.40
8.1.60.0070.00118.57
8.1.50.0040.00418.55
8.1.40.0050.00318.66
8.1.30.0050.00318.66
8.1.20.0050.00318.72
8.1.10.0040.00418.65
8.1.00.0020.00618.52

preferences:
33.44 ms | 403 KiB | 5 Q