3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = $b = null; var_dump($a == 'null'); var_dump($b === 'null');

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)
8.3.60.0040.01116.63
8.3.50.0120.00318.32
8.3.40.0040.01118.70
8.3.30.0060.00918.59
8.3.20.0040.00420.16
8.3.10.0040.00421.90
8.3.00.0070.00023.48
8.2.180.0150.00618.43
8.2.170.0180.00022.96
8.2.160.0070.00720.43
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00022.26
8.2.120.0030.00626.35
8.2.110.0000.01021.11
8.2.100.0080.00318.16
8.2.90.0000.00819.21
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0050.00317.80
8.2.50.0030.00618.22
8.2.40.0050.00220.61
8.2.30.0040.00420.91
8.2.20.0000.00717.96
8.2.10.0040.00418.09
8.2.00.0080.00018.19
8.1.280.0070.01425.92
8.1.270.0090.00020.21
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0060.00323.84
8.1.230.0100.00018.89
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0060.00317.00
8.1.190.0060.00317.23
8.1.180.0060.00320.29
8.1.170.0040.00418.61
8.1.160.0000.00818.79
8.1.150.0070.00020.06
8.1.140.0000.00717.63
8.1.130.0030.00319.04
8.1.120.0000.00717.34
8.1.110.0000.00817.35
8.1.100.0050.00217.44
8.1.90.0030.00517.38
8.1.80.0000.00717.33
8.1.70.0000.00717.40
8.1.60.0080.00017.59
8.1.50.0050.00317.45
8.1.40.0030.00617.36
8.1.30.0000.00817.65
8.1.20.0000.00917.55
8.1.10.0070.00017.53
8.1.00.0090.00017.45
8.0.300.0070.00018.77
8.0.290.0000.00816.63
8.0.280.0000.00718.31
8.0.270.0070.00017.25
8.0.260.0000.00618.34
8.0.250.0000.00816.87
8.0.240.0000.00816.91
8.0.230.0030.00316.96
8.0.220.0000.00716.78
8.0.210.0000.00816.86
8.0.200.0060.00016.91
8.0.190.0050.00216.97
8.0.180.0000.00716.81
8.0.170.0030.00516.79
8.0.160.0040.00816.94
8.0.150.0070.00016.89
8.0.140.0080.00016.85
8.0.130.0050.00013.29
8.0.120.0000.00716.81
8.0.110.0000.00716.82
8.0.100.0050.00216.73
8.0.90.0000.00816.66
8.0.80.0100.00516.84
8.0.70.0040.00416.99
8.0.60.0000.00716.66
8.0.50.0040.00316.73
8.0.30.0070.01117.00
8.0.20.0100.00817.40
8.0.10.0000.00816.91
8.0.00.0120.00616.78
7.4.330.0000.00515.55
7.4.320.0030.00316.62
7.4.300.0000.00716.39
7.4.290.0030.00316.57
7.4.280.0030.00516.57
7.4.270.0040.00416.52
7.4.260.0030.00316.57
7.4.250.0050.00216.39
7.4.240.0000.00716.57
7.4.230.0070.00016.61
7.4.220.0100.01616.35
7.4.210.0100.01016.70
7.4.200.0000.00816.61
7.4.160.0090.01016.47
7.4.150.0030.01417.40
7.4.140.0110.00817.86
7.4.130.0140.00716.60
7.4.120.0100.00716.51
7.4.110.0120.00616.29
7.4.100.0070.01016.55
7.4.90.0090.00916.76
7.4.80.0100.01019.39
7.4.70.0140.00616.58
7.4.60.0130.00316.43
7.4.50.0030.00816.32
7.4.40.0130.00316.40
7.4.30.0100.01016.45
7.4.10.0030.01214.72
7.4.00.0070.01014.82
7.3.330.0020.00213.18
7.3.320.0050.00013.19
7.3.310.0070.00016.07
7.3.300.0040.00416.14
7.3.290.0080.00616.25
7.3.280.0070.00916.26
7.3.270.0090.00817.40
7.3.260.0110.00716.33
7.3.250.0090.00816.36
7.3.240.0110.00716.27
7.3.230.0030.01316.53
7.3.210.0030.01416.11
7.3.200.0130.00316.23
7.3.190.0070.00816.21
7.3.180.0000.01716.33
7.3.170.0140.00716.24
7.3.160.0060.01016.41
7.3.130.0110.00714.84
7.3.120.0030.00914.69
7.3.110.0090.00914.71
7.3.100.0040.00815.02
7.3.90.0000.01214.79
7.3.80.0060.00614.77
7.3.70.0110.00414.87
7.3.60.0070.00414.79
7.3.50.0050.00914.75
7.3.40.0000.00814.77
7.3.30.0000.01314.66
7.3.20.0000.01516.61
7.3.10.0100.00716.84
7.3.00.0060.00916.82
7.2.330.0070.01016.45
7.2.320.0090.00616.53
7.2.310.0130.00316.56
7.2.300.0150.00616.47
7.2.290.0120.01216.42
7.2.260.0100.00714.90
7.2.250.0060.00915.11
7.2.240.0030.01014.64
7.2.230.0070.01015.03
7.2.220.0030.01314.89
7.2.210.0050.00514.93
7.2.200.0090.00014.94
7.2.190.0100.00314.80
7.2.180.0080.00814.75
7.2.170.0100.00314.99
7.2.160.0030.00714.61
7.2.150.0030.01216.79
7.2.140.0070.01116.91
7.2.130.0030.01416.99
7.2.120.0100.00316.92
7.2.110.0000.01316.87
7.2.100.0060.00316.79
7.2.90.0050.00516.80
7.2.80.0130.00616.64
7.2.70.0070.00316.92
7.2.60.0080.00516.82
7.2.50.0000.01416.93
7.2.40.0060.00616.91
7.2.30.0060.00916.83
7.2.20.0040.01116.52
7.2.10.0060.00316.67
7.2.00.0000.01916.65
7.1.330.0000.01215.76
7.1.320.0090.00615.50
7.1.310.0100.00315.57
7.1.300.0030.00615.74
7.1.290.0110.00315.72
7.1.280.0000.01315.45
7.1.270.0030.00615.43
7.1.260.0100.00615.70
7.1.250.0000.01015.56
7.1.240.0070.00715.47
7.1.230.0000.01515.87
7.1.220.0070.00415.81
7.1.210.0060.00615.89
7.1.200.0070.00715.61
7.1.190.0040.00415.86
7.1.180.0040.01115.66
7.1.170.0040.01115.80
7.1.160.0070.00415.76
7.1.150.0030.01015.59
7.1.140.0030.01315.73
7.1.130.0130.00315.70
7.1.120.0030.01015.77
7.1.110.0070.00315.68
7.1.100.2380.00816.06
7.1.90.0070.00816.95
7.1.80.0070.00816.81
7.1.70.0080.00816.40
7.1.60.0160.01025.33
7.1.50.0100.01425.24
7.1.40.0140.01025.11
7.1.30.0120.01424.97
7.1.20.0130.01225.04
7.1.10.0100.00416.29
7.1.00.0110.00516.12
7.0.330.0070.00715.45
7.0.320.0100.00015.54
7.0.310.0070.00715.61
7.0.300.0070.00715.34
7.0.290.0040.01115.40
7.0.280.0070.00715.29
7.0.270.0090.00615.25
7.0.260.0040.00415.60
7.0.250.0060.00615.19
7.0.240.2260.01215.65
7.0.230.0090.00616.34
7.0.220.0050.01016.54
7.0.210.0050.01216.02
7.0.200.0050.01116.11
7.0.190.0050.01016.10
7.0.180.0030.01015.88
7.0.170.0060.01015.84
7.0.160.0050.01015.70
7.0.150.0060.00615.94
7.0.140.0020.01115.82
7.0.130.0050.00916.00
7.0.120.0060.00415.95
7.0.110.0060.00815.95
7.0.100.0060.00715.85
7.0.90.0030.01015.82
7.0.80.0020.01115.82
7.0.70.0090.00715.72
7.0.60.0060.00915.53
7.0.50.0080.00915.73
7.0.40.0030.01414.89
7.0.30.0090.00514.89
7.0.20.0060.00914.88
7.0.10.0090.00614.98
7.0.00.0040.00914.88
5.6.400.0070.01114.30
5.6.390.0040.00713.85
5.6.380.0080.00414.45
5.6.370.0090.00914.01
5.6.360.0080.00014.17
5.6.350.0060.00614.18
5.6.340.0060.00614.37
5.6.330.0070.00814.09
5.6.320.0070.00413.95
5.6.310.0070.00714.49
5.6.300.0030.00614.39
5.6.290.0030.00714.03
5.6.280.0000.01614.26
5.6.270.0040.00814.33
5.6.260.0030.01014.35
5.6.250.0120.00014.18
5.6.240.0030.00514.11
5.6.230.0000.00814.36
5.6.220.0040.01114.20
5.6.210.0040.01014.21
5.6.200.0120.00314.09
5.6.190.0080.00014.29
5.6.180.0100.00314.47
5.6.170.0030.01014.33
5.6.160.0040.00814.34
5.6.150.0000.01314.12
5.6.140.0040.01214.03
5.6.130.0080.00414.32
5.6.120.0050.00314.14
5.6.110.0030.00914.11
5.6.100.0080.00314.10
5.6.90.0140.00014.15
5.6.80.0060.00914.27
5.6.70.0030.01014.10
5.6.60.0030.00814.21
5.6.50.0080.00013.91
5.6.40.0070.00313.92
5.6.30.0070.00714.00
5.6.20.0040.01114.18
5.6.10.0030.01014.15
5.6.00.0090.00314.22

preferences:
34.12 ms | 400 KiB | 5 Q