3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['' => 0]; var_dump(isset($a['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)
8.3.70.0070.00716.50
8.3.60.0150.00316.36
8.3.50.0080.01016.65
8.3.40.0070.00718.89
8.3.30.0120.00318.67
8.3.20.0070.00020.38
8.3.10.0080.00023.48
8.3.00.0060.00319.25
8.2.180.0140.00316.63
8.2.170.0040.01122.96
8.2.160.0070.00720.38
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0070.00021.05
8.2.120.0050.00326.35
8.2.110.0060.00319.34
8.2.100.0100.00018.09
8.2.90.0090.00019.05
8.2.80.0000.00817.97
8.2.70.0090.00017.47
8.2.60.0030.00618.03
8.2.50.0000.00818.10
8.2.40.0030.00720.50
8.2.30.0040.00419.17
8.2.20.0020.00518.11
8.2.10.0000.00817.98
8.2.00.0070.00017.90
8.1.280.0140.00325.92
8.1.270.0070.00022.06
8.1.260.0000.00726.35
8.1.250.0050.00228.09
8.1.240.0030.00623.83
8.1.230.0070.00717.42
8.1.220.0000.00717.74
8.1.210.0030.00618.77
8.1.200.0040.00417.23
8.1.190.0080.00017.23
8.1.180.0030.00618.10
8.1.170.0030.00620.30
8.1.160.0000.00718.91
8.1.150.0080.00020.61
8.1.140.0050.00219.50
8.1.130.0000.00718.82
8.1.120.0070.00017.35
8.1.110.0000.00817.35
8.1.100.0070.00017.39
8.1.90.0020.00517.41
8.1.80.0040.00417.25
8.1.70.0000.00717.40
8.1.60.0050.00317.52
8.1.50.0050.00317.38
8.1.40.0040.00417.38
8.1.30.0080.00017.46
8.1.20.0030.00617.54
8.1.10.0040.00417.40
8.1.00.0030.00617.33
8.0.300.0060.00318.77
8.0.290.0050.00216.63
8.0.280.0070.00018.37
8.0.270.0030.00317.09
8.0.260.0070.00016.75
8.0.250.0000.00716.77
8.0.240.0080.00016.87
8.0.230.0040.00416.96
8.0.220.0000.00616.68
8.0.210.0030.00316.73
8.0.200.0000.00616.77
8.0.190.0030.00616.77
8.0.180.0040.00416.86
8.0.170.0070.00016.80
8.0.160.0070.00016.68
8.0.150.0000.00716.67
8.0.140.0040.00316.74
8.0.130.0000.00513.28
8.0.120.0000.00816.78
8.0.110.0050.00316.86
8.0.100.0000.00716.85
8.0.90.0000.00716.69
8.0.80.0070.00716.86
8.0.70.0040.00416.81
8.0.60.0050.00316.66
8.0.50.0000.00816.72
8.0.30.0120.00517.10
8.0.20.0090.01017.40
8.0.10.0000.00816.96
8.0.00.0120.00616.66
7.4.330.0000.00515.55
7.4.320.0060.00016.44
7.4.300.0030.00316.46
7.4.290.0060.00316.45
7.4.280.0090.00016.54
7.4.270.0050.00316.45
7.4.260.0060.00316.50
7.4.250.0040.00416.37
7.4.240.0000.00716.38
7.4.230.0000.00716.43
7.4.220.0130.00616.39
7.4.210.0120.00316.46
7.4.200.0000.00716.25
7.4.160.0070.01116.40
7.4.150.0070.01117.40
7.4.140.0130.00717.86
7.4.130.0080.01716.54
7.4.120.0080.01016.43
7.4.110.0150.00716.50
7.4.100.0100.01016.48
7.4.90.0090.01316.29
7.4.80.0120.00919.39
7.4.70.0070.01416.46
7.4.60.0120.00316.43
7.4.50.0030.01416.14
7.4.40.0120.00916.43
7.4.30.0070.00716.48
7.4.00.0100.00014.71
7.3.330.0030.00313.14
7.3.320.0000.00512.95
7.3.310.0050.00316.06
7.3.300.0060.00016.23
7.3.290.0070.01016.23
7.3.280.0070.01116.21
7.3.270.0150.00317.40
7.3.260.0140.00716.24
7.3.250.0140.00616.16
7.3.240.0080.01116.18
7.3.230.0100.00716.33
7.3.210.0130.01016.36
7.3.200.0100.00716.35
7.3.190.0080.01216.07
7.3.180.0080.00816.21
7.3.170.0040.01716.29
7.3.160.0100.00616.55
7.3.120.0040.00814.71
7.3.110.0090.00614.70
7.3.100.0030.01314.79
7.3.90.0060.00914.66
7.3.80.0070.00714.78
7.3.70.0030.01314.54
7.3.60.0000.01214.69
7.3.50.0090.00414.48
7.3.40.0100.00014.59
7.3.30.0080.00414.76
7.3.20.0060.00316.36
7.3.10.0030.01016.55
7.3.00.0050.00716.37
7.2.330.0090.00616.40
7.2.320.0070.01116.60
7.2.310.0080.00816.26
7.2.300.0070.01116.38
7.2.290.0030.01416.59
7.2.240.0090.00614.99
7.2.230.0100.00614.81
7.2.220.0100.00714.68
7.2.210.0090.00614.79
7.2.200.0120.00415.06
7.2.190.0070.01114.67
7.2.180.0040.01114.84
7.2.170.0060.00914.91
7.2.160.0000.01315.02
7.2.150.0120.00616.79
7.2.140.0090.00616.85
7.2.130.0080.00716.82
7.2.120.0030.01316.56
7.2.110.0050.00716.68
7.2.100.0020.01116.87
7.2.90.0050.00716.69
7.2.80.0080.00816.91
7.2.70.0060.00616.77
7.2.60.0070.00816.65
7.2.50.0080.00516.90
7.2.40.0010.01416.76
7.2.30.0030.00816.85
7.2.20.0030.01116.76
7.2.10.0070.00716.86
7.2.00.0060.01017.52
7.1.330.0080.00815.76
7.1.320.0030.01315.80
7.1.310.0030.01315.86
7.1.300.0040.01115.32
7.1.290.0130.00315.55
7.1.280.0100.00715.66
7.1.270.0000.01415.71
7.1.260.0050.00515.69
7.1.250.0030.00915.58
7.1.200.0060.00615.84
7.1.100.0090.00918.09
7.1.70.0030.01316.86
7.1.60.0150.01534.81
7.1.50.0270.01034.73
7.1.40.0260.00634.45
7.1.30.0190.01334.39
7.1.20.0210.01234.40
7.1.10.0150.00616.69
7.1.00.0140.00616.36
7.0.200.0060.00916.55
7.0.190.0110.00616.47
7.0.180.0130.00316.02
7.0.170.0060.01216.01
7.0.160.0060.00915.88
7.0.150.0050.01116.14
7.0.140.0090.00916.39
7.0.130.0030.01716.36
7.0.120.0100.01016.61
7.0.110.0140.00316.12
7.0.100.0030.01616.09
7.0.90.0070.01016.36
7.0.80.0070.01016.15
7.0.70.0090.00916.12
7.0.60.0130.00316.04
7.0.50.0090.00616.36
7.0.40.0080.00816.42
7.0.30.0100.00716.13
7.0.20.0090.00816.39
7.0.10.0110.01016.27
7.0.00.0120.00916.29

preferences:
52.39 ms | 401 KiB | 5 Q