3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(null); // null var_dump(NULL); // null define("NuLL","hello world"); var_dump(null); // null var_dump(NuLL); // hello world define("null","hello world"); //Notice: Constant null already defined

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)
8.3.40.0110.00718.46
8.3.30.0140.00618.89
8.3.20.0040.00420.21
8.3.10.0040.00422.00
8.3.00.0080.00022.45
8.2.170.0080.00822.96
8.2.160.0070.00720.53
8.2.150.0090.00024.18
8.2.140.0150.00024.66
8.2.130.0000.00826.16
8.2.120.0000.00819.67
8.2.110.0080.00022.23
8.2.100.0040.00819.39
8.2.90.0060.00318.98
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0000.00817.79
8.2.50.0040.00418.07
8.2.40.0040.00417.91
8.2.30.0070.00017.80
8.2.20.0000.00817.45
8.2.10.0030.00617.60
8.2.00.0000.00717.64
8.1.270.0150.00020.32
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00723.93
8.1.230.0040.00819.10
8.1.220.0000.00717.74
8.1.210.0080.00018.77
8.1.200.0040.00417.00
8.1.190.0050.00217.41
8.1.180.0000.00818.53
8.1.170.0080.00018.58
8.1.160.0040.00322.03
8.1.150.0000.00718.50
8.1.140.0050.00217.37
8.1.130.0060.00317.80
8.1.120.0000.00717.32
8.1.110.0040.00417.29
8.1.100.0000.00717.21
8.1.90.0030.00317.21
8.1.80.0030.00317.38
8.1.70.0040.00417.32
8.1.60.0030.00717.48
8.1.50.0030.00617.41
8.1.40.0090.00017.27
8.1.30.0040.00417.42
8.1.20.0080.00017.50
8.1.10.0040.00417.27
8.1.00.0040.00417.30
8.0.300.0030.00318.77
8.0.290.0040.00417.05
8.0.280.0070.00018.34
8.0.270.0030.00317.04
8.0.260.0040.00416.68
8.0.250.0030.00316.93
8.0.240.0050.00316.75
8.0.230.0000.00816.80
8.0.220.0070.00016.71
8.0.210.0030.00316.73
8.0.200.0030.00316.74
8.0.190.0000.00716.86
8.0.180.0070.00016.82
8.0.170.0040.00416.76
8.0.160.0060.00316.75
8.0.150.0050.00316.75
8.0.140.0000.00716.81
8.0.130.0000.00513.29
8.0.120.0000.00816.71
8.0.110.0000.00816.79
8.0.100.0000.00716.80
8.0.90.0000.00716.80
8.0.80.0060.00916.78
8.0.70.0050.00216.77
8.0.60.0040.00416.82
8.0.50.0070.00016.69
8.0.30.0110.00817.06
8.0.20.0100.00917.40
8.0.10.0000.00716.84
8.0.00.0050.01216.77
7.4.330.0050.00015.00
7.4.320.0000.00816.51
7.4.300.0040.00416.46
7.4.290.0030.00316.36
7.4.280.0050.00316.36
7.4.270.0030.00316.37
7.4.260.0080.00016.45
7.4.250.0040.00416.23
7.4.240.0030.00516.48
7.4.230.0030.00316.50
7.4.220.0030.01316.50
7.4.210.0050.01016.34
7.4.200.0030.00316.49
7.4.190.0000.00716.53
7.4.160.0150.00016.27
7.4.150.0030.01317.40
7.4.140.0140.00617.86
7.4.130.0130.00616.49
7.4.120.0100.00816.33
7.4.110.0030.01316.39
7.4.100.0060.01516.36
7.4.90.0100.00716.50
7.4.80.0070.01019.39
7.4.70.0120.00616.13
7.4.60.0000.01616.31
7.4.50.0000.00516.18
7.4.40.0060.00622.77
7.4.30.0100.01316.34
7.4.10.0000.01615.01
7.4.00.0080.00914.79
7.3.330.0000.00513.13
7.3.320.0000.00613.13
7.3.310.0000.00716.10
7.3.300.0060.00016.21
7.3.290.0110.00316.15
7.3.280.0070.01116.24
7.3.270.0120.00617.40
7.3.260.0070.01716.13
7.3.250.0110.00616.13
7.3.240.0120.00916.50
7.3.230.0100.01516.39
7.3.210.0110.00716.25
7.3.200.0090.00619.39
7.3.190.0070.01416.23
7.3.180.0060.00916.29
7.3.170.0110.00416.27
7.3.160.0090.00916.23
7.3.130.0070.01314.92
7.3.120.0050.01214.72
7.3.110.0120.00614.55
7.3.100.0090.00314.31
7.3.90.0100.00314.50
7.3.80.0040.00714.69
7.3.70.0030.01014.71
7.3.60.0100.00014.49
7.3.50.0090.00914.52
7.3.40.0070.01114.73
7.3.30.0100.00314.65
7.3.20.0100.00316.63
7.3.10.0070.00716.19
7.3.00.0070.00716.32
7.2.330.0060.01216.51
7.2.320.0060.01016.38
7.2.310.0100.01416.51
7.2.300.0070.01016.52
7.2.290.0100.00616.47
7.2.260.0150.00414.77
7.2.250.0070.01014.80
7.2.240.0000.01515.11
7.2.230.0100.00714.47
7.2.220.0000.01314.91
7.2.210.0030.01014.93
7.2.200.0060.00614.85
7.2.190.0060.00814.69
7.2.180.0110.00714.96
7.2.170.0070.01114.86
7.2.160.0040.00714.95
7.2.150.0060.00916.39
7.2.140.0030.01416.60
7.2.130.0100.00516.63
7.2.120.0060.00816.57
7.2.110.0090.00616.33
7.2.100.0080.00416.26
7.2.90.0050.00916.61
7.2.80.0080.01016.75
7.2.70.0070.00716.30
7.2.60.0060.00916.58
7.2.50.0110.00316.52
7.2.40.0080.00816.49
7.2.30.0020.01116.57
7.2.20.0000.01416.32
7.2.10.0070.00516.62
7.2.00.0090.00416.61
7.1.330.0030.01015.57
7.1.320.0040.01415.82
7.1.310.0120.00315.74
7.1.300.0030.01215.57
7.1.290.0080.00815.44
7.1.280.0040.01115.55
7.1.270.0070.00715.49
7.1.260.0060.00915.55
7.1.250.0060.00315.47
7.1.240.0030.00915.49
7.1.230.0030.01415.76
7.1.220.0000.01515.70
7.1.210.0060.00315.54
7.1.200.0070.00715.65
7.1.190.0040.00715.59
7.1.180.0030.00815.61
7.1.170.0090.00315.61
7.1.160.0040.01215.79
7.1.150.0000.01015.64
7.1.140.0040.00815.47
7.1.130.0030.00715.59
7.1.120.0060.00915.60
7.1.110.0000.01615.82
7.1.100.0020.00916.72
7.1.90.0030.01315.68
7.1.80.0040.00815.76
7.1.70.0050.00716.25
7.1.60.0130.00717.71
7.1.50.0070.01116.18
7.1.40.0000.01515.71
7.1.30.0110.00015.71
7.1.20.0070.00715.78
7.1.10.0000.01515.72
7.1.00.0030.02718.96
7.0.330.0070.00415.23
7.0.320.0080.00414.93
7.0.310.0040.00415.09
7.0.300.0150.00315.25
7.0.290.0070.00715.38
7.0.280.0040.00715.33
7.0.270.0080.00315.03
7.0.260.0000.00915.11
7.0.250.0040.01215.17
7.0.240.0070.00415.31
7.0.230.0060.00315.23
7.0.220.0000.01415.08
7.0.210.0050.00315.20
7.0.200.0040.00615.87
7.0.190.0070.00715.06
7.0.180.0150.00015.23
7.0.170.0090.00615.48
7.0.160.0000.01315.29
7.0.150.0100.00615.35
7.0.140.0020.04518.80
7.0.130.0040.00715.16
7.0.120.0060.00915.17
7.0.110.0030.01015.13
7.0.100.0060.00615.25
7.0.90.0060.01015.26
7.0.80.0000.01415.22
7.0.70.0040.00815.14
7.0.60.0070.03917.58
7.0.50.0050.02716.60
7.0.40.0080.04116.77
7.0.30.0100.04716.64
7.0.20.0180.03916.71
7.0.10.0170.03116.65
7.0.00.0080.03116.69
5.6.400.0060.00914.23
5.6.390.0100.00313.83
5.6.380.0080.00014.39
5.6.370.0030.01414.13
5.6.360.0040.00414.16
5.6.350.0100.00314.41
5.6.340.0070.00714.23
5.6.330.0030.01013.91
5.6.320.0040.01114.52
5.6.310.0060.00613.95
5.6.300.0070.00414.27
5.6.290.0090.00613.96
5.6.280.0050.03617.57
5.6.270.0000.00914.25
5.6.260.0060.00614.02
5.6.250.0080.00414.39
5.6.240.0060.00914.06
5.6.230.0030.01414.10
5.6.220.0080.00314.22
5.6.210.0060.02617.22
5.6.200.0030.04816.16
5.6.190.0050.03517.41
5.6.180.1550.02117.28
5.6.170.0120.02117.30
5.6.160.0080.04417.40
5.6.150.0070.03316.08
5.6.140.0020.03716.03
5.6.130.0030.02516.03
5.6.120.0030.03217.62
5.6.110.0070.04217.56
5.6.100.0000.02617.45
5.6.90.0090.02317.47
5.6.80.0070.04317.27
5.6.70.0080.04717.22
5.6.60.0060.00314.21
5.6.50.0060.00613.79
5.6.40.0000.00813.95
5.6.30.0040.01113.89
5.6.20.0000.00813.96
5.6.10.0000.00814.09
5.6.00.0030.01014.20
5.5.380.0030.01313.98
5.5.370.0040.00814.15
5.5.360.0040.01114.03
5.5.350.0090.04317.35
5.5.340.0050.04515.87
5.5.330.0070.02217.17
5.5.320.0220.02217.15
5.5.310.0220.03517.11
5.5.300.0100.03815.88
5.5.290.0080.02216.11
5.5.280.0090.04617.35
5.5.270.0070.03517.34
5.5.260.0090.02917.31
5.5.250.0070.03517.30
5.5.240.0030.04716.95
5.5.230.0070.00314.11
5.5.220.0100.00313.83
5.5.210.0150.00014.27
5.5.200.0030.01214.12
5.5.190.0100.00313.93
5.5.180.0000.00813.79
5.5.170.0040.01114.14
5.5.160.0030.01013.91
5.5.150.0040.00413.78
5.5.140.0030.00913.89
5.5.130.0030.01014.10
5.5.120.0090.00613.77
5.5.110.0040.01114.09
5.5.100.0060.00614.11
5.5.90.0030.01013.82
5.5.80.0070.01113.97
5.5.70.0040.01113.68
5.5.60.0060.00613.90
5.5.50.0040.00713.77
5.5.40.0040.01113.79
5.5.30.0070.00714.05
5.5.20.0040.01114.11
5.5.10.0000.01514.00
5.5.00.0070.00713.50
5.4.450.0310.02815.11
5.4.440.0350.02815.17
5.4.430.0050.03415.10
5.4.420.0360.02615.09
5.4.410.0290.02915.03
5.4.400.0320.03714.77
5.4.390.0220.03314.71
5.4.380.0180.03314.69
5.4.370.0100.02914.72
5.4.360.0080.02814.66
5.4.350.0050.02311.40
5.4.340.0060.02011.35
5.4.330.0040.00710.74
5.4.320.0060.02611.60
5.4.310.0040.02311.59
5.4.300.0070.02011.59
5.4.290.0080.01911.59
5.4.280.0060.02011.54
5.4.270.0060.02311.54
5.4.260.0020.02611.54
5.4.250.0030.03814.80
5.4.240.0100.03514.81
5.4.230.0120.03314.78
5.4.220.0120.02814.80
5.4.210.0070.02814.76
5.4.200.0080.03514.68
5.4.190.0090.03614.77
5.4.180.0110.03814.87
5.4.170.0120.02314.79
5.4.160.0030.04014.86
5.4.150.0100.02614.69
5.4.140.0080.02613.54
5.4.130.0090.02713.61
5.4.120.0100.02513.51
5.4.110.0070.02713.61
5.4.100.0100.02513.56
5.4.90.0060.02713.63
5.4.80.0000.03213.52
5.4.70.0070.02513.51
5.4.60.0050.03013.44
5.4.50.0070.02713.57
5.4.40.0060.02413.56
5.4.30.0050.02513.61
5.4.20.0000.03313.56
5.4.10.0100.02713.54
5.4.00.0050.02713.22
5.3.290.0050.02111.77
5.3.280.0030.03312.61
5.3.270.0080.03512.67
5.3.260.0070.02712.67
5.3.250.0030.02812.69
5.3.240.0020.03412.68
5.3.230.0050.03012.67
5.3.220.0100.03112.53
5.3.210.0040.04212.65
5.3.200.0070.03512.50
5.3.190.0080.02712.50
5.3.180.0030.03012.64
5.3.170.0090.02512.65
5.3.160.0070.02612.65
5.3.150.0080.02612.61
5.3.140.0080.02712.60
5.3.130.0030.03012.71
5.3.120.0030.03212.64
5.3.110.0080.02712.53
5.3.100.0080.02512.23
5.3.90.0020.03212.36
5.3.80.0050.02612.40
5.3.70.0130.02112.45
5.3.60.0080.02512.30
5.3.50.0050.02812.33
5.3.40.0070.02512.23
5.3.30.0070.02612.34
5.3.20.0070.02612.16
5.3.10.0050.03012.27
5.3.00.0140.02612.14
5.2.170.0130.05311.14
5.2.160.0170.03711.14
5.2.150.0100.03710.90
5.2.140.0070.03711.04
5.2.130.0070.04011.00
5.2.120.0100.03710.95
5.2.110.0030.04710.98
5.2.100.0130.03010.99
5.2.90.0030.04311.10
5.2.80.0130.05010.85
5.2.70.0070.04010.85
5.2.60.0030.05311.06
5.2.50.0070.04310.95
5.2.40.0070.05310.95
5.2.30.0070.04011.07
5.2.20.0070.04011.05
5.2.10.0030.05010.69
5.2.00.0070.04010.63
5.1.60.0070.0309.95
5.1.50.0000.04010.05
5.1.40.0070.0309.83
5.1.30.0030.05310.30
5.1.20.0130.03010.18
5.1.10.0030.03310.15
5.1.00.0030.03710.30
5.0.50.0030.0278.59
5.0.40.0000.0308.40
5.0.30.0000.0538.18
5.0.20.0000.0308.25
5.0.10.0030.0278.13
5.0.00.0000.0438.21
4.4.90.0030.0205.78
4.4.80.0000.0235.82
4.4.70.0070.0275.76
4.4.60.0070.0175.79
4.4.50.0000.0235.80
4.4.40.0070.0305.78
4.4.30.0030.0205.78
4.4.20.0030.0205.82
4.4.10.0030.0205.80
4.4.00.0070.0305.83
4.3.110.0030.0205.72
4.3.100.0030.0205.70
4.3.90.0000.0205.70
4.3.80.0030.0405.75
4.3.70.0000.0205.70
4.3.60.0100.0135.70
4.3.50.0070.0205.81
4.3.40.0070.0375.70
4.3.30.0000.0235.70
4.3.20.0070.0175.70
4.3.10.0000.0275.70
4.3.00.0030.0206.50

preferences:
38.95 ms | 400 KiB | 5 Q