3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => false]; var_dump(isset($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)
8.3.40.0080.00818.63
8.3.30.0090.00618.57
8.3.20.0000.00720.16
8.3.10.0030.00723.49
8.3.00.0030.00621.96
8.2.170.0100.00322.96
8.2.160.0130.00319.08
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0070.00020.64
8.2.110.0090.00720.67
8.2.100.0070.00818.38
8.2.90.0110.00518.97
8.2.80.0050.00718.43
8.2.70.0040.01117.92
8.2.60.0070.00218.20
8.2.50.0060.00918.49
8.2.40.0040.01219.63
8.2.30.0050.00919.88
8.2.20.0050.00818.49
8.2.10.0030.00818.33
8.2.00.0070.00518.25
8.1.270.0040.00422.03
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00517.92
8.1.230.0070.00318.82
8.1.220.0070.00818.09
8.1.210.0050.00419.23
8.1.200.0070.00617.89
8.1.190.0020.00717.78
8.1.180.0070.00218.20
8.1.170.0090.00518.49
8.1.160.0100.00318.91
8.1.150.0110.00319.64
8.1.140.0030.00919.00
8.1.130.0050.00718.58
8.1.120.0070.00217.96
8.1.110.0070.00617.79
8.1.100.0020.00717.90
8.1.90.0070.00717.91
8.1.80.0030.00617.86
8.1.70.0080.00017.99
8.1.60.0040.00518.02
8.1.50.0030.00517.94
8.1.40.0080.00117.99
8.1.30.0030.00618.12
8.1.20.0060.00319.04
8.1.10.0060.00318.95
8.1.00.0060.00218.97
8.0.300.0050.00319.17
8.0.290.0040.00418.13
8.0.280.0050.00319.01
8.0.270.0020.00617.37
8.0.260.0070.00417.21
8.0.250.0020.00717.38
8.0.240.0040.00917.28
8.0.230.0030.00517.41
8.0.220.0050.00517.23
8.0.210.0070.00217.18
8.0.200.0030.00717.28
8.0.190.0030.00617.37
8.0.180.0090.00517.36
8.0.170.0110.00217.25
8.0.160.0050.00917.31
8.0.150.0100.00417.23
8.0.140.0060.00617.20
8.0.130.0050.00515.53
8.0.120.0030.00517.33
8.0.110.0060.00817.35
8.0.100.0090.00017.32
8.0.90.0020.00617.23
8.0.80.0100.01017.21
8.0.70.0070.00717.17
8.0.60.0110.00317.22
8.0.50.0090.00517.22
8.0.30.0100.00717.92
8.0.20.0110.00817.89
8.0.10.0090.00517.46
8.0.00.0050.01217.58
7.4.330.0060.00414.74
7.4.320.0080.00517.03
7.4.300.0090.00416.99
7.4.290.0060.00816.97
7.4.280.0080.00717.00
7.4.270.0080.00616.90
7.4.260.0100.00416.95
7.4.250.0050.01116.92
7.4.240.0050.00917.00
7.4.230.0060.00816.92
7.4.220.0050.01416.84
7.4.210.0080.00816.99
7.4.200.0070.00716.85
7.4.190.0040.01217.60
7.4.180.0170.00317.50
7.4.160.0070.00916.78
7.4.150.0130.00617.36
7.4.140.0090.00917.75
7.4.130.0120.00716.92
7.4.120.0100.00916.74
7.4.110.0200.00816.91
7.4.100.0200.00816.92
7.4.90.0190.00616.97
7.4.80.0170.00918.30
7.4.70.0230.00516.77
7.4.60.0200.01016.80
7.4.50.0150.00816.63
7.4.40.0140.00516.79
7.4.30.0130.00916.67
7.4.20.0150.00517.46
7.4.10.0140.00516.90
7.4.00.0080.00715.75
7.3.330.0040.00415.14
7.3.320.0070.00715.03
7.3.310.0120.00016.46
7.3.300.0070.00616.55
7.3.290.0100.00716.42
7.3.280.0070.00816.28
7.3.270.0140.00317.15
7.3.260.0100.00716.47
7.3.250.0090.00816.29
7.3.240.0110.00616.49
7.3.230.0130.00316.48
7.3.220.0130.00316.87
7.3.210.0120.00516.48
7.3.200.0130.00516.73
7.3.190.0100.00916.60
7.3.180.0120.00516.62
7.3.170.0100.00716.64
7.3.160.0130.00516.44
7.3.150.0180.00016.77
7.3.140.0170.00016.93
7.3.130.0160.00215.90
7.3.120.0120.00615.87
7.3.110.0110.00515.86
7.3.100.0110.00315.91
7.3.90.0130.00315.91
7.3.80.0090.00716.76
7.3.70.0110.00215.80
7.3.60.0160.00115.90
7.3.50.0080.00715.65
7.3.40.0110.00615.92
7.3.30.0200.00015.75
7.3.20.0190.00617.82
7.3.10.0150.00217.70
7.3.00.0040.01217.23
7.2.340.0060.00318.99
7.2.330.0150.00316.88
7.2.320.0140.00316.90
7.2.310.0070.00916.95
7.2.300.0120.00616.88
7.2.290.0180.00416.81
7.2.280.0140.00517.00
7.2.270.0100.00717.20
7.2.260.0110.01215.96
7.2.250.0220.00415.94
7.2.240.0110.00915.74
7.2.230.0170.00816.00
7.2.220.0220.00715.90
7.2.210.0170.01016.13
7.2.200.0100.00716.10
7.2.190.0230.00616.13
7.2.180.0100.00616.06
7.2.170.0190.00516.10
7.2.160.0150.01216.15
7.2.150.0250.00517.92
7.2.140.0170.00718.04
7.2.130.0190.00617.36
7.2.120.0160.00817.61
7.2.110.0140.00917.54
7.2.100.0110.00817.58
7.2.90.0110.00617.54
7.2.80.0150.00617.64
7.2.70.0180.00617.59
7.2.60.0310.00716.84
7.2.50.0110.00917.53
7.2.40.0160.01017.58
7.2.30.0130.00417.64
7.2.20.0100.00617.65
7.2.10.0180.00317.72
7.2.00.0100.00718.04
7.1.330.0100.00816.80
7.1.320.0150.00816.97
7.1.310.0110.00316.72
7.1.300.0160.01216.90
7.1.290.0170.00716.95
7.1.280.0090.00816.88
7.1.270.0140.00716.75
7.1.260.0130.00516.83
7.1.250.0110.00716.55
7.1.240.0130.00916.26
7.1.230.0130.00816.57
7.1.220.0130.00716.44
7.1.210.0130.00616.39
7.1.200.0140.00616.18
7.1.190.0110.00816.40
7.1.180.0080.00716.42
7.1.170.0140.00616.42
7.1.160.0130.00816.36
7.1.150.0160.00616.35
7.1.140.0150.00516.36
7.1.130.0110.00416.43
7.1.120.0150.00616.46
7.1.110.0090.01016.39
7.1.100.0110.01016.86
7.1.90.0150.00516.34
7.1.80.0120.00416.52
7.1.70.0100.00716.52
7.1.60.0140.00621.08
7.1.50.0130.00720.97
7.1.40.0210.00720.81
7.1.30.0180.00620.92
7.1.20.0150.00820.87
7.1.10.0120.00716.52
7.1.00.0050.00616.45
7.0.330.0060.00816.14
7.0.320.0120.00616.18
7.0.310.0130.00616.02
7.0.300.0120.00316.08
7.0.290.0120.01016.04
7.0.280.0100.00716.15
7.0.270.0060.00816.07
7.0.260.0100.01116.12
7.0.250.0110.00816.09
7.0.240.0080.00416.18
7.0.230.0100.01016.06
7.0.220.0140.00516.24
7.0.210.0110.01016.15
7.0.200.0100.00916.21
7.0.190.0110.00716.10
7.0.180.0110.01016.02
7.0.170.0110.00716.17
7.0.160.0100.00816.05
7.0.150.0110.00716.00
7.0.140.0080.00716.08
7.0.130.0070.00816.20
7.0.120.0080.00816.22
7.0.110.0100.00716.07
7.0.100.0060.00916.20
7.0.90.0050.00916.06
7.0.80.0080.01116.06
7.0.70.0110.00916.04
7.0.60.0130.00616.10
7.0.50.0100.01116.10
7.0.40.0100.00515.16
7.0.30.0110.00615.20
7.0.20.0070.01015.15
7.0.10.0100.00715.13
7.0.00.0070.00715.11
5.6.400.0100.00715.48
5.6.390.0150.00415.32
5.6.380.0090.01314.92
5.6.370.0160.00815.37
5.6.360.0100.01015.55
5.6.350.0180.00515.34
5.6.340.0060.00815.60
5.6.330.0090.00515.62
5.6.320.0070.00215.45
5.6.310.0070.00515.53
5.6.300.0040.00915.27
5.6.290.0020.00915.41
5.6.280.0070.00715.51
5.6.270.0080.00315.74
5.6.260.0050.00715.53
5.6.250.0030.00815.72
5.6.240.0050.00615.48
5.6.230.0060.00615.50
5.6.220.0030.00815.58
5.6.210.0050.00615.58
5.6.200.0060.00715.67
5.6.190.0030.00815.55
5.6.180.0120.00515.54
5.6.170.0060.01215.48
5.6.160.0060.01115.57
5.6.150.0080.00915.53
5.6.140.0080.00715.56
5.6.130.0040.01215.52
5.6.120.0110.00715.40
5.6.110.0040.01315.26
5.6.100.0110.00615.54
5.6.90.0050.01315.32
5.6.80.0020.01415.36
5.6.70.0070.01015.58
5.6.60.0100.00715.54
5.6.50.0080.00815.36
5.6.40.0100.00515.52
5.6.30.0080.00915.38
5.6.20.0120.00715.55
5.6.10.0090.00615.45
5.6.00.0030.01115.30

preferences:
43.14 ms | 400 KiB | 5 Q