3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump((string) null); var_dump((string) false); var_dump((string) 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)
8.3.60.0060.00918.55
8.3.50.0150.00616.22
8.3.40.0100.01318.67
8.3.30.0140.00018.97
8.3.20.0090.00620.34
8.3.10.0040.00421.86
8.3.00.0040.00423.53
8.2.180.0110.00718.29
8.2.170.0100.00322.96
8.2.160.0160.00322.21
8.2.150.0000.00824.18
8.2.140.0090.00324.66
8.2.130.0070.00026.16
8.2.120.0040.00417.50
8.2.110.0070.00320.48
8.2.100.0070.00417.63
8.2.90.0040.00419.09
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0000.00917.78
8.2.50.0090.00018.07
8.2.40.0080.00021.07
8.2.30.0080.00019.66
8.2.20.0070.00017.48
8.2.10.0040.00417.83
8.2.00.0040.00417.98
8.1.280.0030.01025.92
8.1.270.0030.00520.23
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0000.00923.92
8.1.230.0120.00017.54
8.1.220.0030.00617.74
8.1.210.0030.00618.77
8.1.200.0000.00817.22
8.1.190.0030.00517.10
8.1.180.0000.00718.10
8.1.170.0040.00418.65
8.1.160.0040.00421.84
8.1.150.0000.00718.71
8.1.140.0060.00317.29
8.1.130.0080.00017.52
8.1.120.0070.00017.38
8.1.110.0080.00017.27
8.1.100.0030.00317.32
8.1.90.0040.00417.39
8.1.80.0030.00517.37
8.1.70.0040.00417.26
8.1.60.0030.00617.41
8.1.50.0000.00817.28
8.1.40.0080.00017.38
8.1.30.0080.00017.28
8.1.20.0040.00417.49
8.1.10.0020.00517.36
8.1.00.0080.00017.29
8.0.300.0000.00818.77
8.0.290.0000.00716.63
8.0.280.0070.00018.22
8.0.270.0000.00716.98
8.0.260.0040.00417.13
8.0.250.0040.00416.92
8.0.240.0000.00616.84
8.0.230.0030.00316.73
8.0.220.0050.00216.77
8.0.210.0000.00816.78
8.0.200.0000.00816.86
8.0.190.0050.00316.78
8.0.180.0040.00416.83
8.0.170.0060.00316.76
8.0.160.0030.00316.72
8.0.150.0030.00316.84
8.0.140.0000.00716.72
8.0.130.0060.00313.20
8.0.120.0000.00716.77
8.0.110.0040.00416.72
8.0.100.0000.00716.84
8.0.90.0000.00716.81
8.0.80.0040.01116.79
8.0.70.0040.00416.86
8.0.60.0040.00416.81
8.0.50.0020.00516.81
8.0.30.0110.00917.06
8.0.20.0070.01117.40
8.0.10.0000.00816.75
8.0.00.0110.00816.53
7.4.330.0000.00615.20
7.4.320.0060.00016.46
7.4.300.0030.00316.32
7.4.290.0040.00416.43
7.4.280.0070.00016.49
7.4.270.0030.00316.47
7.4.260.0080.00016.42
7.4.250.0000.00716.23
7.4.240.0020.00516.33
7.4.230.0030.00316.27
7.4.220.0150.00916.39
7.4.210.0080.00716.46
7.4.200.0030.00316.34
7.4.160.0060.00916.59
7.4.150.0100.00717.40
7.4.140.0130.00817.86
7.4.130.0090.01116.36
7.4.120.0090.00716.32
7.4.110.0050.01116.23
7.4.100.0130.00716.38
7.4.90.0060.01216.32
7.4.80.0060.01619.39
7.4.70.0130.00316.39
7.4.60.0130.00316.45
7.4.50.0000.00816.50
7.4.40.0180.00416.32
7.4.30.0110.01116.35
7.4.00.0060.01114.83
7.3.330.0000.00713.05
7.3.320.0020.00213.12
7.3.310.0070.00016.27
7.3.300.0030.00316.04
7.3.290.0070.00716.16
7.3.280.0130.00416.25
7.3.270.0170.00017.40
7.3.260.0100.01016.17
7.3.250.0100.00716.28
7.3.240.0140.00816.23
7.3.230.0030.01516.39
7.3.210.0110.00516.38
7.3.200.0070.01016.32
7.3.190.0120.00316.34
7.3.180.0060.00916.19
7.3.170.0060.01016.36
7.3.160.0030.01516.14
7.3.120.0070.00814.52
7.3.110.0070.01114.79
7.3.100.0000.01414.55
7.3.90.0070.00714.65
7.3.80.0080.01014.80
7.3.70.0090.00414.58
7.3.60.0040.01214.56
7.3.50.0030.00814.64
7.3.40.0140.00214.62
7.3.30.0040.01014.73
7.3.20.0070.00516.49
7.3.10.0030.01016.60
7.3.00.0060.00616.44
7.2.330.0070.01016.56
7.2.320.0160.00616.21
7.2.310.0040.01216.34
7.2.300.0040.01116.51
7.2.290.0180.00416.54
7.2.250.0060.01214.77
7.2.240.0080.00314.83
7.2.230.0040.00815.04
7.2.220.0030.00914.98
7.2.210.0050.01014.92
7.2.200.0080.00814.79
7.2.190.0070.00914.89
7.2.180.0080.00614.70
7.2.170.0040.01315.00
7.2.160.0060.01014.85
7.2.150.0040.01116.69
7.2.140.0030.00916.91
7.2.130.0030.01016.91
7.2.120.0070.00316.42
7.2.110.0040.00816.55
7.2.100.0080.00816.63
7.2.90.0030.01016.71
7.2.80.0070.00716.72
7.2.70.0070.00716.61
7.2.60.0140.00016.91
7.2.50.0030.01116.43
7.2.40.0040.00816.61
7.2.30.0040.01116.80
7.2.20.0040.01116.59
7.2.10.0040.00416.90
7.2.00.0020.01118.12
7.1.330.0030.01315.77
7.1.320.0050.00815.59
7.1.310.0050.01215.55
7.1.300.0080.00415.78
7.1.290.0110.00515.71
7.1.280.0060.01015.58
7.1.270.0090.00515.42
7.1.260.0060.01015.58
7.1.250.0000.01415.76
7.1.100.0000.01117.89
7.1.70.0050.00316.86
7.1.60.0070.01719.42
7.1.50.0060.01216.63
7.1.00.0000.08022.31
7.0.200.0220.00614.56
7.0.60.0270.07721.85
7.0.50.0070.04017.82
7.0.40.0070.08720.10
7.0.30.0300.08020.02
7.0.20.0300.06320.13
7.0.10.0170.07320.18
7.0.00.0030.04020.16
5.6.280.0070.03020.86
5.6.210.0030.05320.54
5.6.200.0030.08318.19
5.6.190.0000.06320.27
5.6.180.0270.05720.67
5.6.170.0400.07320.33
5.6.160.0000.04320.68
5.6.150.0070.07718.13
5.6.140.0100.07718.21
5.6.130.0070.08018.18
5.6.120.0030.04721.13
5.6.110.0130.06321.13
5.6.100.0030.05321.14
5.6.90.0030.08020.87
5.6.80.0070.05320.50
5.5.350.0270.07720.43
5.5.340.0030.08718.02
5.5.330.0000.04720.21
5.5.320.0300.07020.51
5.5.310.0230.03720.20
5.5.300.0100.07717.98
5.5.290.0030.04317.98
5.5.280.0200.06320.89
5.5.270.0130.08320.94
5.5.260.0130.07720.86
5.5.250.0030.04320.60
5.5.240.0270.03720.25
5.4.450.3930.04319.41
5.4.440.0000.08319.50
5.4.430.1530.06019.19
5.4.420.3070.03719.45
5.4.410.4100.04019.16
5.4.400.3970.03718.87
5.4.390.3830.04719.20
5.4.380.4070.04019.00
5.4.370.4070.03719.14
5.4.360.4100.04018.91
5.4.350.3570.04019.11
5.4.340.0070.08019.05
5.4.320.4130.03018.94
5.4.310.4070.03719.18
5.4.300.4170.03718.92
5.4.290.4230.03018.88
5.4.280.4200.03719.07
5.4.270.4030.04019.09
5.4.260.3870.03719.04
5.4.250.3570.03318.98
5.4.240.0070.04018.98
5.4.230.2870.04019.23
5.4.220.4530.04319.14
5.4.210.4030.03018.93
5.4.200.4030.04018.87
5.4.190.4900.04318.86
5.4.180.3330.03318.86
5.4.170.3070.04019.14
5.4.160.3330.03318.92
5.4.150.3900.03719.11
5.4.140.3670.03016.38
5.4.130.3330.03016.20
5.4.120.2330.03016.25
5.4.110.3070.03716.25
5.4.100.2870.03316.12
5.4.90.3870.03716.46
5.4.80.4030.03716.13
5.4.70.3900.04716.32
5.4.60.3770.03316.10
5.4.50.4100.03316.22
5.4.40.4070.04016.29
5.4.30.4170.03316.30
5.4.20.4300.03716.18
5.4.10.4600.04016.23
5.4.00.3900.03715.79
5.3.290.4130.03314.59
5.3.280.4970.02714.61
5.3.270.2430.03314.47
5.3.260.3900.02714.42
5.3.250.3230.03714.52
5.3.240.3330.03714.56
5.3.230.3530.03714.68
5.3.220.3470.03014.44
5.3.210.3230.03314.51
5.3.200.2600.03714.46
5.3.190.3870.04014.49
5.3.180.3970.03014.52
5.3.170.4200.03314.50
5.3.160.4000.04314.64
5.3.150.4370.04714.48
5.3.140.3800.03014.51
5.3.130.3930.04014.46
5.3.120.3870.03714.36
5.3.110.4070.03714.33
5.3.100.4270.03013.99
5.3.90.4000.03313.88
5.3.80.4500.03713.99
5.3.70.4070.03713.85
5.3.60.3400.03014.09
5.3.50.4170.03313.88
5.3.40.4330.03313.73
5.3.30.4630.04013.86
5.3.20.4130.03313.61
5.3.10.3900.04013.57
5.3.00.4570.03313.57
5.2.170.3430.03311.25
5.2.160.3130.03311.07
5.2.150.3430.03310.97
5.2.140.3070.03711.13
5.2.130.3330.02711.06
5.2.120.3000.02710.98
5.2.110.3630.03011.07
5.2.100.3700.03311.08
5.2.90.3530.03011.25
5.2.80.3770.03311.19
5.2.70.4130.03311.25
5.2.60.4070.03010.98
5.2.50.3930.03010.83
5.2.40.3170.02310.97
5.2.30.3470.03010.90
5.2.20.3430.03010.88
5.2.10.3430.03010.84
5.2.00.3130.03010.72
5.1.60.3270.02710.00
5.1.50.3300.02710.02
5.1.40.3130.0309.94
5.1.30.2870.02310.28
5.1.20.2870.02710.34
5.1.10.2830.02310.11
5.1.00.3000.02710.07
5.0.50.1530.0208.55
5.0.40.1330.0178.55
5.0.30.1670.0278.16
5.0.20.1570.0208.16
5.0.10.1370.0278.13
5.0.00.1570.0338.16
4.4.90.1930.0135.89
4.4.80.0770.0235.81
4.4.70.1730.0205.80
4.4.60.1330.0175.80
4.4.50.1870.0205.80
4.4.40.1830.0235.76
4.4.30.1770.0105.80
4.4.20.1270.0175.82
4.4.10.1670.0175.88
4.4.00.1500.0235.82
4.3.110.1470.0175.70
4.3.100.1430.0175.76
4.3.90.1330.0175.66
4.3.80.1670.0275.70
4.3.70.1600.0135.71
4.3.60.1470.0135.78
4.3.50.1470.0135.73
4.3.40.1600.0235.71
4.3.30.0830.0234.48
4.3.20.0800.0204.57
4.3.10.0830.0174.47
4.3.00.1030.0134.41

preferences:
69.59 ms | 400 KiB | 5 Q