3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a' => null, 'b' => ''); var_dump(isset($a['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)
8.3.60.0070.01116.50
8.3.50.0040.01118.20
8.3.40.0130.00918.67
8.3.30.0060.01218.53
8.3.20.0050.00318.98
8.3.10.0080.00023.53
8.3.00.0030.00620.61
8.2.180.0080.00818.16
8.2.170.0100.01022.96
8.2.160.0140.00020.52
8.2.150.0070.00024.18
8.2.140.0000.00724.66
8.2.130.0070.00018.09
8.2.120.0080.00026.35
8.2.110.0080.00322.11
8.2.100.0060.00617.91
8.2.90.0050.00317.50
8.2.80.0000.00817.97
8.2.70.0000.00817.80
8.2.60.0060.00318.22
8.2.50.0030.00518.10
8.2.40.0000.00919.46
8.2.30.0080.00019.11
8.2.20.0090.00018.11
8.2.10.0040.00417.86
8.2.00.0030.00617.45
8.1.280.0140.00025.92
8.1.270.0080.00018.61
8.1.260.0090.00626.35
8.1.250.0000.00728.09
8.1.240.0070.00322.66
8.1.230.0080.00417.75
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0030.00617.23
8.1.190.0060.00317.10
8.1.180.0090.00018.10
8.1.170.0030.00618.41
8.1.160.0030.00318.81
8.1.150.0050.00218.73
8.1.140.0000.00722.17
8.1.130.0000.00720.21
8.1.120.0000.00817.41
8.1.110.0020.00517.28
8.1.100.0040.00417.41
8.1.90.0060.00317.36
8.1.80.0000.00717.40
8.1.70.0000.00717.37
8.1.60.0040.00417.47
8.1.50.0050.00217.48
8.1.40.0040.00417.34
8.1.30.0040.00417.59
8.1.20.0040.00417.49
8.1.10.0060.00317.51
8.1.00.0000.00817.42
8.0.300.0050.00218.77
8.0.290.0040.00416.63
8.0.280.0070.00018.23
8.0.270.0070.00017.11
8.0.260.0000.00718.39
8.0.250.0040.00416.76
8.0.240.0060.00316.89
8.0.230.0070.00016.80
8.0.220.0000.00716.78
8.0.210.0030.00316.82
8.0.200.0040.00416.74
8.0.190.0070.00416.79
8.0.180.0040.00416.81
8.0.170.0090.00016.88
8.0.160.0070.00016.71
8.0.150.0030.00316.74
8.0.140.0000.00816.66
8.0.130.0020.00613.18
8.0.120.0040.00416.71
8.0.110.0000.00716.72
8.0.100.0070.00016.66
8.0.90.0040.00416.81
8.0.80.0060.00916.80
8.0.70.0000.00816.66
8.0.60.0040.00416.70
8.0.50.0030.00516.70
8.0.30.0110.00717.08
8.0.20.0120.00917.40
8.0.10.0050.00317.00
8.0.00.0070.01016.59
7.4.330.0000.00615.55
7.4.320.0060.00016.38
7.4.300.0000.00616.40
7.4.290.0060.00016.53
7.4.280.0000.00816.33
7.4.270.0000.00716.50
7.4.260.0070.00016.34
7.4.250.0080.00016.47
7.4.240.0070.00016.55
7.4.230.0000.00716.50
7.4.220.0000.00716.50
7.4.210.0100.00716.50
7.4.200.0000.00716.41
7.4.160.0100.00516.27
7.4.140.0120.01017.86
7.4.130.0080.00816.40
7.4.120.0110.00816.36
7.4.110.0070.01116.30
7.4.100.0090.00616.37
7.4.90.0130.00316.32
7.4.80.0110.00719.39
7.4.70.0140.00316.39
7.4.60.0090.00616.50
7.4.50.0070.00716.25
7.4.40.0150.00316.29
7.4.10.0150.01316.42
7.4.00.0100.00815.34
7.3.330.0060.00012.95
7.3.320.0030.00313.06
7.3.310.0090.00016.10
7.3.300.0030.00316.14
7.3.290.0000.00716.03
7.3.280.0020.01316.20
7.3.260.0100.00716.31
7.3.240.0090.00916.29
7.3.230.0100.00716.20
7.3.210.0100.00715.99
7.3.200.0070.01016.30
7.3.190.0090.01216.44
7.3.180.0070.01316.28
7.3.170.0030.01416.09
7.3.160.0100.00616.07
7.3.130.0160.01116.32
7.3.120.0100.01215.15
7.3.110.0090.01015.23
7.3.100.0080.00815.02
7.3.90.0060.00815.16
7.3.80.0020.01315.28
7.3.70.0110.00215.19
7.3.60.0120.00315.27
7.3.50.0110.00915.18
7.3.40.0070.00815.06
7.3.30.0130.00615.20
7.3.20.0100.00717.02
7.3.10.0080.01217.02
7.3.00.0090.00816.91
7.2.330.0100.00616.47
7.2.320.0040.01216.68
7.2.310.0100.00716.35
7.2.300.0060.01016.36
7.2.290.0090.00916.48
7.2.260.0180.01216.20
7.2.250.0120.00915.63
7.2.240.0060.01515.43
7.2.230.0070.00915.36
7.2.220.0030.01015.29
7.2.210.0060.00915.41
7.2.200.0030.00815.34
7.2.190.0070.01115.36
7.2.180.0060.00815.46
7.2.170.0060.00815.30
7.2.160.0110.01115.45
7.2.150.0100.01117.37
7.2.140.0050.01517.42
7.2.130.0080.01517.34
7.2.120.0110.01217.47
7.2.110.0290.01316.56
7.2.100.0320.01016.54
7.2.90.0260.01316.62
7.2.80.0260.00816.59
7.2.70.0290.00716.59
7.2.60.0300.00716.59
7.2.50.0390.01016.63
7.2.40.0260.01516.63
7.2.30.0340.00916.56
7.2.20.0310.01316.47
7.2.10.0340.00516.41
7.2.00.0370.00616.60
7.1.330.0060.01016.25
7.1.320.0040.01015.99
7.1.310.0060.01116.11
7.1.300.0050.01116.13
7.1.290.0080.00816.17
7.1.280.0090.01015.95
7.1.270.0080.01016.13
7.1.260.0090.01116.18
7.1.250.0110.00916.48
7.1.240.0130.01617.17
7.1.230.0350.00315.38
7.1.220.0280.01215.36
7.1.210.0350.00915.46
7.1.200.0340.00915.44
7.1.190.0290.01215.35
7.1.180.0400.00815.38
7.1.170.0660.00915.39
7.1.160.0380.01015.47
7.1.150.0390.01015.29
7.1.140.0390.01015.38
7.1.130.0400.01215.52
7.1.120.0330.01615.39
7.1.110.0340.01215.54
7.1.100.0410.00515.32
7.1.90.0320.01815.27
7.1.80.0530.00815.34
7.1.70.0440.00915.49
7.1.60.0470.00924.46
7.1.50.0560.01024.51
7.1.40.0720.00524.52
7.1.30.0650.00624.28
7.1.20.0630.01624.45
7.1.10.0710.00615.29
7.1.00.0380.00915.51
7.0.330.0180.00917.07
7.0.320.0170.01016.97
7.0.310.0150.01016.89
7.0.300.0190.00916.99
7.0.290.0160.00616.90
7.0.280.0110.01416.61
7.0.270.0240.00316.86
7.0.260.0120.01216.98
7.0.250.0220.00617.03
7.0.240.0170.01016.76
7.0.230.0200.00816.95
7.0.220.0160.00816.80
7.0.210.0150.01216.73
7.0.200.0190.00817.00
7.0.190.0170.01016.78
7.0.180.0140.01416.97
7.0.170.0200.00616.83
7.0.160.0180.00916.77
7.0.150.0180.01116.94
7.0.140.0100.01516.84
7.0.130.0220.00516.73
7.0.120.0140.01116.70
7.0.110.0180.00916.98
7.0.100.0190.00616.81
7.0.90.0150.01116.79
7.0.80.0070.01416.79
7.0.70.0120.00316.89
7.0.60.0070.01116.84
7.0.50.0090.00316.73
7.0.40.0070.01014.82
7.0.30.0070.00714.91
7.0.20.0070.00714.93
7.0.10.0100.00314.86
7.0.00.0100.00414.77
5.6.400.0190.00915.65
5.6.390.0130.01815.83
5.6.380.0150.00815.06
5.6.370.0190.01015.92
5.6.360.0110.01515.83
5.6.350.0130.01315.50
5.6.340.0140.01715.51
5.6.330.0160.01215.50
5.6.320.0170.01115.56
5.6.310.0150.01515.61
5.6.300.0070.02015.80
5.6.290.0110.01815.86
5.6.280.0180.01115.76
5.6.270.0180.01115.80
5.6.260.0100.01315.80
5.6.250.0160.00815.75
5.6.240.0220.00615.95
5.6.230.0070.01115.62
5.6.220.0030.01215.88
5.6.210.0000.01816.05
5.6.200.0060.01215.82
5.6.190.0040.01115.81
5.6.180.0060.00615.70
5.6.170.0110.00715.73
5.6.160.0000.01416.00
5.6.150.0000.01615.50
5.6.140.0060.00915.85
5.6.130.0070.01115.74
5.6.120.0150.00015.80
5.6.110.0120.00315.98
5.6.100.0040.01215.58
5.6.90.0070.00315.86
5.6.80.0030.00815.72
5.6.70.0060.01215.79
5.6.60.0060.00915.82
5.6.50.0070.00715.44
5.6.40.0200.00815.54
5.6.30.0140.01415.69
5.6.20.0080.02015.47
5.6.10.0120.01715.73
5.6.00.0080.01115.62

preferences:
58.56 ms | 401 KiB | 5 Q