3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => NULL]; var_dump(isset($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)
8.3.70.0070.00718.09
8.3.60.0170.00316.38
8.3.50.0050.01116.62
8.3.40.0130.00718.84
8.3.30.0070.00718.68
8.3.20.0040.00420.25
8.3.10.0030.00621.64
8.3.00.0000.00821.96
8.2.180.0070.01116.50
8.2.170.0090.00622.96
8.2.160.0190.00019.12
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00721.12
8.2.120.0000.00726.35
8.2.110.0040.00421.12
8.2.100.0040.00717.78
8.2.90.0040.00419.05
8.2.80.0040.00418.03
8.2.70.0070.00417.63
8.2.60.0000.00717.80
8.2.50.0000.00818.10
8.2.40.0060.00320.47
8.2.30.0080.00021.03
8.2.20.0000.00717.99
8.2.10.0000.00818.01
8.2.00.0070.00017.92
8.1.280.0070.00725.92
8.1.270.0040.00421.82
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0000.00823.79
8.1.230.0040.00719.14
8.1.220.0070.00317.74
8.1.210.0080.00018.77
8.1.200.0060.00317.23
8.1.190.0080.00017.11
8.1.180.0050.00318.10
8.1.170.0060.00318.57
8.1.160.0000.00718.92
8.1.150.0060.00320.64
8.1.140.0040.00419.55
8.1.130.0030.00318.81
8.1.120.0000.00717.39
8.1.110.0000.00717.31
8.1.100.0030.00317.27
8.1.90.0030.00517.36
8.1.80.0000.00717.35
8.1.70.0030.00317.36
8.1.60.0000.00717.50
8.1.50.0070.00017.43
8.1.40.0040.00417.35
8.1.30.0060.00317.55
8.1.20.0000.00717.60
8.1.10.0030.00517.53
8.1.00.0000.00717.45
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0000.00718.37
8.0.270.0000.00717.22
8.0.260.0060.00316.75
8.0.250.0070.00016.90
8.0.240.0000.00716.87
8.0.230.0030.00316.86
8.0.220.0030.00316.83
8.0.210.0000.00716.78
8.0.200.0030.00316.91
8.0.190.0000.00816.84
8.0.180.0040.00316.75
8.0.170.0030.00316.85
8.0.160.0030.00716.74
8.0.150.0000.00716.66
8.0.140.0050.00316.80
8.0.130.0030.00313.21
8.0.120.0000.00816.77
8.0.110.0030.00616.75
8.0.100.0040.00416.86
8.0.90.0050.00216.86
8.0.80.0060.01216.81
8.0.70.0000.00716.84
8.0.60.0080.00016.78
8.0.50.0070.00016.71
8.0.30.0090.00917.00
8.0.20.0120.00717.40
8.0.10.0030.00316.81
8.0.00.0100.00716.68
7.4.330.0000.00515.55
7.4.320.0060.00016.51
7.4.300.0060.00016.29
7.4.290.0070.00016.48
7.4.280.0050.00316.44
7.4.270.0000.00716.41
7.4.260.0030.00316.31
7.4.250.0050.00316.52
7.4.240.0030.00316.59
7.4.230.0000.00616.63
7.4.220.0150.00416.43
7.4.210.0100.00316.35
7.4.200.0040.00416.56
7.4.160.0080.00916.43
7.4.150.0070.01017.40
7.4.140.0090.01217.86
7.4.130.0150.00416.41
7.4.120.0100.00816.40
7.4.110.0100.00716.21
7.4.100.0090.00616.43
7.4.90.0070.01116.24
7.4.80.0070.01019.39
7.4.70.0070.01016.28
7.4.60.0100.00716.37
7.4.50.0060.00916.20
7.4.40.0090.00916.54
7.4.30.0130.00416.45
7.4.10.0110.00714.68
7.4.00.0080.00914.92
7.3.330.0060.00012.99
7.3.320.0030.00312.95
7.3.310.0000.00716.20
7.3.300.0000.00716.21
7.3.290.0010.01316.18
7.3.280.0090.00916.19
7.3.270.0140.00317.40
7.3.260.0060.01016.19
7.3.250.0160.00516.29
7.3.240.0110.00916.22
7.3.230.0130.00316.16
7.3.210.0060.00916.12
7.3.200.0090.00616.42
7.3.190.0060.01016.32
7.3.180.0170.00416.23
7.3.170.0100.00616.43
7.3.160.0040.01216.50
7.3.130.0050.01414.84
7.3.120.0060.01014.82
7.3.110.0090.00914.53
7.3.100.0060.00814.86
7.3.90.0030.01314.82
7.3.80.0060.00814.81
7.3.70.0080.00514.75
7.3.60.0080.00714.72
7.3.50.0040.00514.63
7.3.40.0070.00414.68
7.3.30.0040.00814.58
7.3.20.0040.01016.57
7.3.10.0050.01016.47
7.3.00.0060.00516.36
7.2.330.0080.00916.36
7.2.320.0110.00616.65
7.2.310.0110.00716.56
7.2.300.0060.01116.38
7.2.290.0080.01116.61
7.2.260.0070.00915.04
7.2.250.0080.00914.73
7.2.240.0090.00614.80
7.2.230.0040.01215.09
7.2.220.0070.01114.59
7.2.210.0100.00414.98
7.2.200.0070.00714.86
7.2.190.0030.01114.73
7.2.180.0060.00614.90
7.2.170.0060.00814.77
7.2.160.0040.00914.68
7.2.150.0030.01216.57
7.2.140.0100.00416.73
7.2.130.0090.00516.81
7.2.120.0070.00716.71
7.2.110.0120.00416.00
7.2.100.0190.00615.97
7.2.90.1630.01016.02
7.2.80.1380.00615.93
7.2.70.1110.00616.02
7.2.60.0790.00816.34
7.2.50.1520.00416.15
7.2.40.1000.01015.96
7.2.30.0910.00416.26
7.2.20.0940.00716.19
7.2.10.0090.00815.93
7.2.00.0070.01016.89
7.1.330.0070.00615.60
7.1.320.0070.00915.77
7.1.310.0030.00715.67
7.1.300.0070.00715.40
7.1.290.0050.00615.67
7.1.280.0060.00815.66
7.1.270.0070.00815.59
7.1.260.0060.00815.54
7.1.250.0040.00715.66
7.1.240.0070.00415.63
7.1.230.0230.00814.95
7.1.220.1170.00915.00
7.1.210.0860.00714.97
7.1.200.1160.00915.09
7.1.190.1070.00815.01
7.1.180.1530.00514.94
7.1.170.1880.00915.12
7.1.160.1230.00515.10
7.1.150.1060.00815.02
7.1.140.0560.00414.97
7.1.130.0210.01015.07
7.1.120.0030.00914.97
7.1.110.0150.00415.15
7.1.100.0100.00715.72
7.1.90.0240.00914.99
7.1.80.0140.00714.86
7.1.70.0050.01015.33
7.1.60.0420.00724.61
7.1.50.0440.01024.37
7.1.40.0400.01024.45
7.1.30.0350.01124.34
7.1.20.0440.00524.44
7.1.10.0270.00715.45
7.1.00.0350.01115.45
7.0.330.0020.01415.11
7.0.320.0040.00715.05
7.0.310.1660.00914.72
7.0.300.1540.00514.57
7.0.290.1180.00714.62
7.0.280.0690.00914.55
7.0.270.0740.00514.50
7.0.260.0380.00714.58
7.0.250.0100.00814.57
7.0.240.1100.00814.65
7.0.230.0650.00514.71
7.0.220.0490.00414.60
7.0.210.0090.00714.70
7.0.200.0370.00615.18
7.0.190.0390.00915.21
7.0.180.0640.00914.94
7.0.170.0170.00915.09
7.0.160.0310.00715.08
7.0.150.0360.00715.08
7.0.140.0300.00615.00
7.0.130.0270.00815.07
7.0.120.0350.00715.13
7.0.110.0280.01015.00
7.0.100.0270.00914.97
7.0.90.0360.00914.90
7.0.80.0240.01015.07
7.0.70.0210.01015.04
7.0.60.0300.00414.87
7.0.50.0220.01015.07
7.0.40.0210.01214.18
7.0.30.0320.00914.14
7.0.20.0250.01014.18
7.0.10.0240.00714.22
7.0.00.0260.00814.04
5.6.400.0050.00814.32
5.6.390.0030.00914.17
5.6.380.0100.00314.23
5.6.370.0040.01214.25
5.6.360.0050.01014.24
5.6.350.0030.00814.20
5.6.340.0050.00714.38
5.6.330.0070.00714.47
5.6.320.0040.01214.40
5.6.310.0040.00914.14
5.6.300.0030.01114.36
5.6.290.0030.00614.30
5.6.280.0050.00714.33
5.6.270.0030.00814.24
5.6.260.0030.00814.05
5.6.250.0040.00714.25
5.6.240.0050.00814.20
5.6.230.0050.00814.29
5.6.220.0050.00514.28
5.6.210.0010.00714.16
5.6.200.0050.00614.00
5.6.190.0050.00914.14
5.6.180.0060.00614.26
5.6.170.0060.00614.21
5.6.160.0080.00314.06
5.6.150.0050.00714.53
5.6.140.0040.00814.49
5.6.130.0080.00014.25
5.6.120.0020.01214.31
5.6.110.0000.01214.00
5.6.100.0060.00714.40
5.6.90.0030.01014.36
5.6.80.0030.01014.16
5.6.70.0030.00514.06
5.6.60.0040.00814.27
5.6.50.0060.00314.28
5.6.40.0120.00014.31
5.6.30.0030.01014.09
5.6.20.0060.00914.14
5.6.10.0080.00414.16
5.6.00.0030.00914.13

preferences:
37.37 ms | 401 KiB | 5 Q