3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "0"; var_dump($a != NULL && $a == 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)
8.3.40.0110.00418.57
8.3.30.0090.00618.80
8.3.20.0050.00220.29
8.3.10.0060.00321.92
8.3.00.0040.00422.25
8.2.170.0110.01122.96
8.2.160.0070.00720.55
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0140.00326.16
8.2.120.0120.00019.36
8.2.110.0030.00622.25
8.2.100.0040.00819.51
8.2.90.0050.00319.11
8.2.80.0040.00417.97
8.2.70.0030.00717.61
8.2.60.0040.00418.05
8.2.50.0110.00018.07
8.2.40.0080.00018.09
8.2.30.0030.00618.05
8.2.20.0000.00717.67
8.2.10.0040.00419.40
8.2.00.0000.00717.66
8.1.270.0040.00422.18
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00323.88
8.1.230.0040.00719.13
8.1.220.0000.00717.74
8.1.210.0000.00918.77
8.1.200.0030.00617.38
8.1.190.0040.00417.53
8.1.180.0030.00518.10
8.1.170.0030.00518.71
8.1.160.0070.00021.88
8.1.150.0000.00718.63
8.1.140.0030.00517.41
8.1.130.0040.00417.80
8.1.120.0000.00717.46
8.1.110.0000.00817.36
8.1.100.0070.00017.38
8.1.90.0040.00417.33
8.1.80.0040.00417.42
8.1.70.0030.00317.42
8.1.60.0030.00617.50
8.1.50.0060.00317.42
8.1.40.0000.00817.41
8.1.30.0050.00317.65
8.1.20.0000.00817.62
8.1.10.0000.00717.44
8.1.00.0000.00717.27
8.0.300.0070.00018.77
8.0.290.0040.00417.18
8.0.280.0040.00418.44
8.0.270.0030.00317.16
8.0.260.0000.00616.75
8.0.250.0000.00716.96
8.0.240.0050.00316.95
8.0.230.0030.00316.92
8.0.220.0030.00316.91
8.0.210.0000.00716.80
8.0.200.0000.00616.96
8.0.190.0040.00416.93
8.0.180.0030.00516.96
8.0.170.0070.00016.96
8.0.160.0000.00716.89
8.0.150.0030.00316.86
8.0.140.0040.00416.88
8.0.130.0030.00313.30
8.0.120.0070.00016.92
8.0.110.0000.00716.78
8.0.100.0040.00416.67
8.0.90.0040.00416.73
8.0.80.0070.00716.89
8.0.70.0000.00816.79
8.0.60.0040.00416.85
8.0.50.0050.00316.75
8.0.30.0120.00616.97
8.0.20.0080.01117.40
8.0.10.0000.00716.96
8.0.00.0130.00616.73
7.4.330.0000.00715.02
7.4.320.0030.00316.61
7.4.300.0060.00316.49
7.4.290.0040.00416.59
7.4.280.0030.00316.59
7.4.270.0030.00316.58
7.4.260.0030.00316.44
7.4.250.0050.00316.57
7.4.240.0060.00216.57
7.4.230.0030.00516.70
7.4.220.0120.00616.64
7.4.210.0090.00916.56
7.4.200.0000.00716.61
7.4.190.0030.00316.47
7.4.160.0120.00416.65
7.4.150.0120.00617.40
7.4.140.0100.00917.86
7.4.130.0110.00616.68
7.4.120.0080.00916.52
7.4.110.0110.01416.54
7.4.100.0130.00616.56
7.4.90.0130.00316.48
7.4.80.0060.01019.39
7.4.70.0060.01516.57
7.4.60.0060.00916.56
7.4.50.0000.00516.43
7.4.40.0120.00622.77
7.4.30.0100.00716.53
7.4.00.0070.00714.79
7.3.330.0030.00312.95
7.3.320.0050.00012.94
7.3.310.0050.00316.34
7.3.300.0070.00016.18
7.3.290.0040.01116.18
7.3.280.0080.00816.18
7.3.270.0140.00317.40
7.3.260.0100.00716.31
7.3.250.0080.00816.49
7.3.240.0130.00316.58
7.3.230.0100.00716.45
7.3.210.0080.01216.49
7.3.200.0100.01019.39
7.3.190.0130.00316.30
7.3.180.0080.00816.66
7.3.170.0090.00616.30
7.3.160.0090.01216.31
7.3.120.0060.00914.87
7.3.110.0060.00314.79
7.3.100.0060.00814.54
7.3.90.0070.00314.36
7.3.80.0000.01014.69
7.3.70.0110.00414.70
7.3.60.0110.00414.82
7.3.50.0040.01114.57
7.3.40.0060.00314.59
7.3.30.0030.01014.45
7.3.20.0030.00616.35
7.3.10.0040.00816.48
7.3.00.0040.00716.68
7.2.330.0180.00016.60
7.2.320.0120.01216.48
7.2.310.0110.00516.66
7.2.300.0030.01316.66
7.2.290.0080.01416.55
7.2.250.0070.00314.93
7.2.240.0070.01115.05
7.2.230.0030.01314.94
7.2.220.0000.01015.11
7.2.210.0040.00814.81
7.2.200.0040.00814.98
7.2.190.0000.01515.09
7.2.180.0070.01114.96
7.2.170.0040.00714.90
7.2.130.0030.00616.65
7.2.120.0000.00916.85
7.2.110.0030.00616.79
7.2.100.0130.00016.69
7.2.90.0030.00616.95
7.2.80.0090.00316.66
7.2.70.0060.00916.78
7.2.60.0100.00316.79
7.2.50.0000.00916.63
7.2.40.0030.01016.52
7.2.30.0040.00716.75
7.2.20.0060.00316.81
7.2.10.0060.00916.99
7.2.00.0080.00316.75
7.1.330.0000.01315.83
7.1.320.0070.00315.90
7.1.310.0060.00615.60
7.1.300.0070.01015.79
7.1.290.0070.00715.89
7.1.280.0030.01015.88
7.1.270.0000.00815.80
7.1.260.0000.01315.66
7.1.250.0040.01115.70
7.1.70.0050.00216.96
7.1.60.0040.00717.15
7.1.50.0060.01516.67
7.1.00.0070.07022.35
7.0.200.0060.00316.95
7.0.140.0130.06321.95
7.0.60.0070.07719.92
7.0.50.0100.05317.80
7.0.40.0000.04720.31
7.0.30.0270.06320.17
7.0.20.0200.07020.09
7.0.10.0330.05320.09
7.0.00.0070.04020.16
5.6.280.0070.07021.02
5.6.210.0070.06320.52
5.6.200.0100.07018.16
5.6.190.0100.07020.64
5.6.180.0000.07320.61
5.6.170.0370.07320.41
5.6.160.0030.04020.54
5.6.150.0070.03718.12
5.6.140.0070.03318.11
5.6.130.0000.09018.21
5.6.120.0000.04321.11
5.6.110.0070.08721.03
5.6.100.0130.08020.98
5.6.90.0130.08021.00
5.6.80.0030.09020.39
5.6.70.0270.05720.39
5.5.350.0100.07320.35
5.5.340.0100.05717.96
5.5.330.0000.04720.21
5.5.320.0330.06020.23
5.5.310.0230.05320.50
5.5.300.0030.06717.91
5.5.290.0100.08317.87
5.5.280.0030.04320.69
5.5.270.0200.05020.86
5.5.260.0130.07720.93
5.5.250.0100.07320.58
5.5.240.0200.06320.26
5.4.450.0630.06019.46
5.4.440.0730.06319.48
5.4.430.0100.07719.64
5.4.420.0130.06719.31
5.4.410.0130.05318.95
5.4.400.0300.05318.74
5.4.390.0200.06318.67
5.4.380.0230.05318.61
5.4.370.0170.02718.50
5.4.360.0000.04318.61
5.4.350.0070.03611.97
5.4.340.0100.03411.96
5.4.320.0060.03912.45
5.4.310.0050.04512.45
5.4.300.0090.03612.46
5.4.290.0080.04512.45
5.4.280.0070.03412.34
5.4.270.0100.07018.91
5.4.260.0070.05018.67
5.4.250.0030.06318.81
5.4.240.0130.07718.88
5.4.230.0170.05019.02
5.4.220.0070.08318.95
5.4.210.0100.08318.66
5.4.200.0100.05318.82
5.4.190.0200.06018.76
5.4.180.0130.04718.89
5.4.170.0070.06018.87
5.4.160.0130.06719.00
5.4.150.0030.06018.75
5.4.140.0130.05016.24
5.4.130.0130.06716.25
5.4.120.0130.06316.45
5.4.110.0170.06016.48
5.4.100.0100.05316.48
5.4.90.0100.06716.36
5.4.80.0030.05716.27
5.4.70.0130.06016.41
5.4.60.0100.05316.23
5.4.50.0100.06716.34
5.4.40.0100.06716.46
5.4.30.0070.04716.26
5.4.20.0130.06716.39
5.4.10.0170.04316.48
5.4.00.0200.03715.70
5.3.290.0100.04112.80
5.3.280.0100.06014.63
5.3.270.0100.07014.48
5.3.260.0000.06014.75
5.3.250.0130.04714.52
5.3.240.0170.06714.60
5.3.230.0100.05014.61
5.3.220.0130.06714.27
5.3.210.0070.05314.33
5.3.200.0070.05714.58
5.3.190.0070.05714.40
5.3.180.0030.06314.57
5.3.170.0100.05014.43
5.3.160.0070.05714.41
5.3.150.0070.05014.55
5.3.140.0100.05714.57
5.3.130.0100.05014.56
5.3.120.0200.04014.55
5.3.110.0200.04014.44
5.3.100.0030.06314.08
5.3.90.0130.04313.85
5.3.80.0100.07014.04
5.3.70.0170.04013.71
5.3.60.0100.05014.01
5.3.50.0100.06713.95
5.3.40.0000.06013.86
5.3.30.0100.07013.92
5.3.20.0200.04313.45
5.3.10.0130.06013.34
5.3.00.0070.06013.65
5.2.170.0070.05711.05
5.2.160.0100.04310.90
5.2.150.0070.04011.16
5.2.140.0030.06311.16
5.2.130.0170.04010.93
5.2.120.0130.06011.03
5.2.110.0030.04010.98
5.2.100.0000.04711.01
5.2.90.0100.05711.24
5.2.80.0100.05010.97
5.2.70.0070.04310.97
5.2.60.0030.04311.20
5.2.50.0130.05310.92
5.2.40.0130.03711.01
5.2.30.0130.05710.98
5.2.20.0100.04010.87
5.2.10.0100.04710.70
5.2.00.0030.04310.92
5.1.60.0070.04310.01
5.1.50.0100.04010.08
5.1.40.0030.0379.88
5.1.30.0070.03710.23
5.1.20.0070.04010.39
5.1.10.0070.04010.09
5.1.00.0070.04710.15
5.0.50.0070.0378.31
5.0.40.0100.0308.45
5.0.30.0070.0538.36
5.0.20.0170.0278.10
5.0.10.0000.0338.07
5.0.00.0170.0438.20
4.4.90.0030.0235.92
4.4.80.0070.0205.91
4.4.70.0000.0305.91
4.4.60.0000.0305.91
4.4.50.0070.0175.91
4.4.40.0030.0375.91
4.4.30.0030.0275.91
4.4.20.0030.0235.91
4.4.10.0000.0305.96
4.4.00.0030.0435.91
4.3.110.0000.0305.91
4.3.100.0000.0305.91
4.3.90.0100.0175.91
4.3.80.0030.0305.91
4.3.70.0070.0275.91
4.3.60.0000.0205.91
4.3.50.0070.0235.91
4.3.40.0100.0375.91
4.3.30.0030.0235.91
4.3.20.0030.0235.91
4.3.10.0070.0205.91
4.3.00.0030.0237.14

preferences:
38.89 ms | 400 KiB | 5 Q