3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('k1' => null, 'k2'=>null); $result = ($a === null); var_dump($result || count($a) === 0);

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)
8.3.60.0120.00916.63
8.3.50.0090.01122.04
8.3.40.0120.00318.47
8.3.30.0070.00718.83
8.3.20.0030.00320.20
8.3.10.0080.00023.70
8.3.00.0050.00319.79
8.2.180.0070.00716.32
8.2.170.0070.00722.96
8.2.160.0030.01021.04
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.22
8.2.110.0060.00320.32
8.2.100.0110.00017.84
8.2.90.0060.00319.23
8.2.80.0050.00317.97
8.2.70.0040.00417.63
8.2.60.0030.00618.05
8.2.50.0040.00418.07
8.2.40.0000.00918.22
8.2.30.0040.00418.00
8.2.20.0070.00017.68
8.2.10.0050.00318.11
8.2.00.0080.00017.77
8.1.280.0100.00625.92
8.1.270.0030.00623.96
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00620.87
8.1.230.0070.00417.42
8.1.220.0040.00417.79
8.1.210.0030.00518.77
8.1.200.0090.00017.35
8.1.190.0060.00317.51
8.1.180.0050.00318.77
8.1.170.0050.00218.50
8.1.160.0000.00722.06
8.1.150.0080.00018.73
8.1.140.0040.00417.49
8.1.130.0000.00717.82
8.1.120.0040.00417.38
8.1.110.0000.00817.52
8.1.100.0070.00017.38
8.1.90.0040.00417.43
8.1.80.0000.00817.46
8.1.70.0000.00717.43
8.1.60.0040.00417.47
8.1.50.0040.00417.54
8.1.40.0070.00017.53
8.1.30.0050.00317.66
8.1.20.0030.00517.52
8.1.10.0040.00417.51
8.1.00.0020.00517.31
8.0.300.0000.00718.77
8.0.290.0040.00416.58
8.0.280.0050.00218.38
8.0.270.0030.00317.16
8.0.260.0000.00717.24
8.0.250.0000.00716.96
8.0.240.0000.00716.91
8.0.230.0030.00616.96
8.0.220.0070.00016.77
8.0.210.0050.00316.77
8.0.200.0000.00716.95
8.0.190.0040.00416.85
8.0.180.0040.00416.95
8.0.170.0000.00816.91
8.0.160.0040.00416.88
8.0.150.0090.00316.75
8.0.140.0090.00016.87
8.0.130.0050.00013.27
8.0.120.0040.00416.83
8.0.110.0040.00416.86
8.0.100.0000.00716.66
8.0.90.0070.00016.71
8.0.80.0030.01216.86
8.0.70.0020.00516.89
8.0.60.0000.00716.95
8.0.50.0070.00016.90
8.0.30.0090.01017.25
8.0.20.0090.00917.40
8.0.10.0030.00616.95
8.0.00.0130.00616.79
7.4.330.0000.00515.05
7.4.320.0000.00616.59
7.4.300.0000.00616.60
7.4.290.0040.00416.50
7.4.280.0000.00816.59
7.4.270.0070.00016.51
7.4.260.0000.00716.48
7.4.250.0000.00816.57
7.4.240.0060.00216.54
7.4.230.0040.00416.53
7.4.220.0060.01216.50
7.4.210.0090.00816.60
7.4.200.0070.00016.66
7.4.160.0140.00316.34
7.4.150.0110.00717.40
7.4.140.0110.01117.86
7.4.130.0130.00316.42
7.4.120.0070.01016.52
7.4.110.0160.00316.56
7.4.100.0130.00316.48
7.4.90.0110.00716.60
7.4.80.0110.00619.39
7.4.70.0170.00416.43
7.4.60.0090.00616.43
7.4.50.0000.00616.60
7.4.40.0040.01216.54
7.4.30.0070.01416.62
7.4.00.0070.01015.00
7.3.330.0050.00013.25
7.3.320.0000.00513.09
7.3.310.0020.00516.41
7.3.300.0030.00316.27
7.3.290.0140.00716.31
7.3.280.0110.01016.30
7.3.270.0120.00617.40
7.3.260.0100.01416.50
7.3.250.0110.00716.38
7.3.240.0130.01016.50
7.3.230.0170.00016.39
7.3.210.0100.00616.48
7.3.200.0060.00919.39
7.3.190.0030.01416.57
7.3.180.0090.00616.44
7.3.170.0090.01216.37
7.3.160.0120.00416.29
7.3.120.0050.01214.65
7.3.110.0110.00714.72
7.3.100.0030.01214.75
7.3.90.0080.00714.89
7.3.80.0110.00214.83
7.3.70.0020.01014.84
7.3.60.0020.01014.77
7.3.50.0100.00414.81
7.3.40.0060.00814.80
7.3.30.0030.00914.78
7.3.20.0080.00916.60
7.3.10.0100.00516.63
7.3.00.0100.00516.65
7.2.330.0100.00716.39
7.2.320.0130.01016.64
7.2.310.0100.00716.44
7.2.300.0160.00016.52
7.2.290.0180.00416.72
7.2.250.0100.00814.96
7.2.240.0080.01014.64
7.2.230.0090.00714.94
7.2.220.0060.01014.97
7.2.210.0070.00915.01
7.2.200.0060.00915.00
7.2.190.0080.00514.82
7.2.180.0030.00915.03
7.2.170.0040.00915.09
7.2.60.0060.01016.48
7.2.00.0060.00619.47
7.1.330.0060.00915.70
7.1.320.0080.00515.87
7.1.310.0090.00415.70
7.1.300.0050.00515.66
7.1.290.0070.00215.84
7.1.280.0080.00615.57
7.1.270.0050.00815.65
7.1.260.0080.00815.83
7.1.200.0060.00615.76
7.1.100.0030.01418.34
7.1.70.0000.01016.99
7.1.60.0090.01619.29
7.1.50.0130.00716.56
7.1.00.0070.07322.43
7.0.200.0110.00614.92
7.0.140.0030.03022.07
7.0.60.0030.06020.00
7.0.50.0170.07017.81
7.0.40.0030.05020.23
7.0.30.0200.05320.28
7.0.20.0270.07720.12
7.0.10.0030.04320.19
7.0.00.0170.07720.21
5.6.210.0130.07020.74
5.6.200.0030.08718.18
5.6.190.0130.04720.27
5.6.180.0300.05720.60
5.6.170.0270.04320.51
5.6.160.0030.04020.71
5.6.150.0170.07018.11
5.6.140.0100.07018.18
5.6.130.0070.08018.17
5.6.120.0070.08321.05
5.6.110.0130.07720.95
5.6.100.0070.05320.88
5.6.90.0000.04720.96
5.6.80.0200.06720.39
5.5.350.0130.07020.43
5.5.340.0070.06317.92
5.5.330.0170.07320.19
5.5.320.0030.07720.30
5.5.310.0270.08320.28
5.5.300.0030.08717.95
5.5.290.0030.08317.92
5.5.280.0000.04320.64
5.5.270.0000.05720.75
5.5.260.0070.08320.67
5.5.250.0030.05320.57
5.5.240.0030.08020.14
5.4.450.0170.06319.32
5.4.440.0230.06319.27
5.4.430.0170.05019.15
5.4.420.0030.06319.30
5.4.410.0100.05319.37
5.4.400.0130.05019.00
5.4.390.0200.04319.05
5.4.380.0170.05318.58
5.4.370.0270.04318.59
5.4.360.0100.06018.63
5.4.350.0170.04313.68
5.4.340.0200.03713.72
5.4.320.0100.05014.13
5.4.310.0130.05314.18
5.4.300.0070.05014.35
5.4.290.0230.04314.20
5.4.280.0130.04714.18
5.4.270.0100.05714.05
5.4.260.0200.04714.02
5.4.250.0100.05714.05
5.4.240.0070.05314.18
5.4.230.3030.04314.07
5.4.220.0270.04014.10
5.4.210.0170.05714.03
5.4.200.0430.06014.07
5.4.190.0230.05314.04
5.4.180.0300.04714.10
5.4.170.0100.05314.25
5.4.160.0030.05314.10
5.4.150.0200.04713.98
5.4.140.0130.05013.79
5.4.130.0200.04313.77
5.4.120.0130.05313.67
5.4.110.0100.04713.65
5.4.100.0170.04313.79
5.4.90.0130.04713.73
5.4.80.0100.04313.70
5.4.70.0170.04013.70
5.4.60.0370.04313.70
5.4.50.0030.04313.70
5.4.40.0100.04713.63
5.4.30.0200.03313.80
5.4.20.0100.05013.84
5.4.10.0100.04713.68
5.4.00.0100.05013.34
5.3.290.0230.04714.51
5.3.280.0200.05014.51
5.3.270.0230.04014.47
5.3.260.0370.04714.47
5.3.250.0130.05014.63
5.3.240.0070.05714.54
5.3.230.0130.06014.59
5.3.220.0270.04014.41
5.3.210.0130.05714.45
5.3.200.0100.05014.48
5.3.190.0200.04014.46
5.3.180.0130.04714.49
5.3.170.0130.04314.44
5.3.160.0170.04714.45
5.3.150.0030.06714.52
5.3.140.0230.04714.47
5.3.130.0100.05314.52
5.3.120.0130.05314.58
5.3.110.0100.05714.48
5.3.100.0130.05014.04
5.3.90.0200.04014.02
5.3.80.0170.04313.94
5.3.70.0600.04713.91
5.3.60.0270.04713.86
5.3.50.0130.06013.93
5.3.40.0130.04713.88
5.3.30.0130.05013.91
5.3.20.0130.04013.61
5.3.10.0130.04713.52
5.3.00.0070.04713.64
5.2.170.0100.03011.04
5.2.160.0030.03711.09
5.2.150.0100.04011.21
5.2.140.0030.04311.20
5.2.130.0070.03311.10
5.2.120.0070.03011.02
5.2.110.0030.04011.00
5.2.100.0030.03311.10
5.2.90.0000.04311.06
5.2.80.0130.03010.95
5.2.70.0100.03011.10
5.2.60.0030.03711.01
5.2.50.0100.03310.91
5.2.40.0100.03310.96
5.2.30.0030.04311.03
5.2.20.0100.04010.87
5.2.10.0130.03310.91
5.2.00.0100.03010.64
5.1.60.0030.0279.96
5.1.50.0100.0279.99
5.1.40.0070.0339.90
5.1.30.0100.03010.34
5.1.20.0100.03310.29
5.1.10.0130.03010.04
5.1.00.0100.0279.98
5.0.50.0000.0278.57
5.0.40.0030.0238.52
5.0.30.0070.0308.20
5.0.20.0070.0178.38
5.0.10.0000.0278.14
5.0.00.0030.0408.19
4.4.90.0030.0235.88
4.4.80.0070.0205.84
4.4.70.0000.0235.80
4.4.60.0000.0235.82
4.4.50.0070.0175.82
4.4.40.0000.0375.81
4.4.30.0070.0175.82
4.4.20.0000.0205.86
4.4.10.0030.0205.92
4.4.00.0000.0275.85
4.3.110.0070.0175.86
4.3.100.0000.0175.85
4.3.90.0030.0135.73
4.3.80.0100.0205.80
4.3.70.0070.0175.72
4.3.60.0030.0205.73
4.3.50.0100.0205.72
4.3.40.0030.0305.71
4.3.30.0070.0174.48
4.3.20.0030.0204.45
4.3.10.0000.0204.45
4.3.00.0100.0236.50

preferences:
56.19 ms | 401 KiB | 5 Q