3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo empty(""); var_dump(empty("\0")); echo empty($a); $b=10; echo ~$b,"\n"; echo !$b;

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)
8.3.40.0150.00618.70
8.3.30.0130.00918.77
8.3.20.0070.00720.12
8.3.10.0050.00323.66
8.3.00.0040.00419.11
8.2.170.0180.00022.96
8.2.160.0110.01120.57
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0070.01120.83
8.2.110.0060.00322.07
8.2.100.0060.00617.91
8.2.90.0080.00019.05
8.2.80.0040.00417.97
8.2.70.0060.00617.50
8.2.60.0000.00817.93
8.2.50.0060.00318.07
8.2.40.0040.00418.09
8.2.30.0040.00418.30
8.2.20.0080.00017.54
8.2.10.0040.00417.92
8.2.00.0050.00217.68
8.1.270.0030.00623.97
8.1.260.0050.00326.35
8.1.250.0060.00328.09
8.1.240.0000.00823.91
8.1.230.0070.00419.09
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0120.00017.35
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0060.00318.58
8.1.160.0070.00022.00
8.1.150.0040.00418.63
8.1.140.0080.00017.44
8.1.130.0070.00017.73
8.1.120.0040.00317.34
8.1.110.0080.00017.38
8.1.100.0030.00317.33
8.1.90.0070.00017.52
8.1.80.0040.00417.49
8.1.70.0000.00717.41
8.1.60.0040.00417.46
8.1.50.0000.00717.54
8.1.40.0000.00917.53
8.1.30.0040.00417.63
8.1.20.0090.00317.53
8.1.10.0000.00817.43
8.1.00.0030.00517.45
8.0.300.0000.00818.77
8.0.290.0040.00417.18
8.0.280.0000.00818.44
8.0.270.0000.00717.15
8.0.260.0000.00617.25
8.0.250.0000.00716.94
8.0.240.0030.00316.97
8.0.230.0030.00316.90
8.0.220.0070.00016.79
8.0.210.0030.00316.75
8.0.200.0000.00716.80
8.0.190.0030.00516.85
8.0.180.0050.00216.78
8.0.170.0080.00016.88
8.0.160.0000.00716.95
8.0.150.0070.00316.81
8.0.140.0050.00316.87
8.0.130.0060.00013.27
8.0.120.0000.00816.71
8.0.110.0070.00016.73
8.0.100.0000.00816.71
8.0.90.0040.00416.94
8.0.80.0120.00316.82
8.0.70.0080.00016.86
8.0.60.0000.00716.69
8.0.50.0040.00416.89
8.0.30.0130.00516.94
8.0.20.0110.00817.43
8.0.10.0080.00017.05
8.0.00.0120.00616.88
7.4.330.0030.00315.13
7.4.320.0030.00316.59
7.4.300.0050.00216.39
7.4.290.0070.00016.54
7.4.280.0000.00716.59
7.4.270.0030.00316.61
7.4.260.0080.00016.55
7.4.250.0000.00816.47
7.4.240.0050.00216.49
7.4.230.0030.00316.55
7.4.220.0140.01116.55
7.4.210.0040.01116.52
7.4.200.0040.00316.50
7.4.190.0030.00316.65
7.4.160.0160.00316.45
7.4.150.0100.00717.40
7.4.140.0070.01017.86
7.4.130.0050.01116.44
7.4.120.0100.00716.50
7.4.110.0130.00316.43
7.4.100.0110.00716.41
7.4.90.0060.01216.44
7.4.80.0180.00019.39
7.4.70.0060.01116.50
7.4.60.0100.00616.37
7.4.50.0040.00416.12
7.4.40.0060.01616.50
7.4.30.0140.00416.51
7.4.00.0060.00914.96
7.3.330.0050.00013.18
7.3.320.0050.00013.13
7.3.310.0070.00016.04
7.3.300.0000.00716.05
7.3.290.0060.00916.30
7.3.280.0080.01016.30
7.3.270.0130.00617.40
7.3.260.0080.00816.58
7.3.250.0120.00616.42
7.3.240.0070.01016.51
7.3.230.0100.00716.39
7.3.210.0150.00316.28
7.3.200.0170.00619.39
7.3.190.0100.00716.39
7.3.180.0080.01416.38
7.3.170.0060.01016.38
7.3.160.0060.00916.19
7.3.120.0140.00014.97
7.2.330.0000.01816.28
7.2.320.0060.01316.16
7.2.310.0090.00916.53
7.2.300.0120.00616.72
7.2.290.0040.01316.65
7.2.00.0100.00319.32
7.1.100.0060.00618.31
7.1.70.0030.01317.13
7.1.60.0070.01419.46
7.1.50.0030.01316.63
7.1.00.0000.08022.33
7.0.200.0130.00016.47
7.0.140.0070.06722.08
7.0.100.0170.07319.93
7.0.90.0100.08019.92
7.0.80.0030.06019.99
7.0.70.0470.08319.97
7.0.60.0400.05319.96
7.0.50.0530.07020.25
7.0.40.0070.06320.04
7.0.30.0070.08319.99
7.0.20.0130.07320.04
7.0.10.0070.05720.18
7.0.00.0000.05720.13
5.6.250.0030.07320.63
5.6.240.0070.08320.72
5.6.230.0070.04720.58
5.6.220.0100.08020.48
5.6.210.0130.07320.76
5.6.200.0100.06720.88
5.6.190.0030.05321.10
5.6.180.0030.07321.00
5.6.170.0030.07021.00
5.6.160.0070.07021.04
5.6.150.0130.07721.16
5.6.140.0070.08720.94
5.6.130.0100.06021.01
5.6.120.0200.07021.05
5.6.110.0070.08321.00
5.6.100.0000.08321.08
5.6.90.0100.07721.08
5.6.80.0100.04320.41
5.6.70.0100.06720.50
5.6.60.0030.08320.40
5.6.50.0230.06720.33
5.6.40.0070.04320.43
5.6.30.0000.04720.43
5.6.20.0130.06020.39
5.6.10.0030.04320.37
5.6.00.0100.09720.35
5.5.380.0170.07320.41
5.5.370.0030.06720.40
5.5.360.0070.08720.51
5.5.350.0100.06720.44
5.5.340.0070.04020.87
5.5.330.0100.05020.87
5.5.320.0070.05020.92
5.5.310.0130.07320.63
5.5.300.0070.04720.72
5.5.290.0030.06320.76
5.5.280.0070.05020.88
5.5.270.0070.04720.89
5.5.260.0130.06720.74
5.5.250.0030.08320.44
5.5.240.0070.05720.20
5.5.230.0030.04020.11
5.5.220.0100.07720.16
5.5.210.0100.06020.28
5.5.200.0100.05020.07
5.5.190.0030.05020.17
5.5.180.0030.05020.10
5.5.160.0130.04020.14
5.5.150.0070.07020.12
5.5.140.0070.04720.23
5.5.130.0100.06320.14
5.5.120.0030.04020.26
5.5.110.0170.07019.96
5.5.100.0070.06720.08
5.5.90.0070.07720.09
5.5.80.0200.06720.14
5.5.70.0030.07320.02
5.5.60.0070.06020.07
5.5.50.0130.07320.14
5.5.40.0130.06020.13
5.5.30.0100.07320.06
5.5.20.0070.08020.08
5.5.10.0070.06319.98
5.5.00.0130.07720.07
5.4.450.0070.05719.36
5.4.440.0130.07319.27
5.4.430.0030.04719.45
5.4.420.0130.04019.45
5.4.410.0100.06719.10
5.4.400.0100.03319.10
5.4.390.0130.03719.13
5.4.380.0070.07019.23
5.4.370.0070.07719.05
5.4.360.0070.07719.15
5.4.350.0030.07319.05
5.4.340.0030.06319.03
5.4.320.0070.04318.88
5.4.310.0030.08319.09
5.4.300.0030.06319.09
5.4.290.0130.03019.12
5.4.280.0030.06018.91
5.4.270.0000.04019.03
5.4.260.0170.05719.04
5.4.250.0030.08018.90
5.4.240.0100.06019.09
5.4.230.0070.06319.16
5.4.220.0070.07718.94
5.4.210.0070.06019.02
5.4.200.0070.06019.23
5.4.190.0170.06319.08
5.4.180.0000.08718.84
5.4.170.0130.03719.07
5.4.160.0100.07019.16
5.4.150.0070.04319.02
5.4.140.0030.07316.45
5.4.130.0070.04316.45
5.4.120.0030.04716.42
5.4.110.0100.06316.51
5.4.100.0100.03716.51
5.4.90.0100.04716.36
5.4.80.0030.06716.52
5.4.70.0030.08016.25
5.4.60.0130.06716.30
5.4.50.0070.07716.32
5.4.40.0070.06716.53
5.4.30.0000.06316.30
5.4.20.0100.06716.39
5.4.10.0070.04016.29
5.4.00.0070.03315.90
5.3.290.0130.06014.66
5.3.280.0070.07314.54
5.3.270.0070.07714.57
5.3.260.0200.03714.54
5.3.250.0070.04314.60
5.3.240.0030.07714.60
5.3.230.0130.07014.59
5.3.220.0030.06314.55
5.3.210.0000.04714.40
5.3.200.0070.08014.56
5.3.190.0030.04314.52
5.3.180.0200.04014.57
5.3.170.0030.05314.55
5.3.160.0070.04314.50
5.3.150.0100.07714.42
5.3.140.0100.04014.47
5.3.130.0100.06714.40
5.3.120.0030.06314.55
5.3.110.0070.06314.39
5.3.100.0030.04313.95
5.3.90.0130.06713.98
5.3.80.0000.05313.96
5.3.70.0100.06314.00
5.3.60.0030.07313.88
5.3.50.0030.06313.95
5.3.40.0070.03313.93
5.3.30.0100.05013.86
5.3.20.0000.07313.66
5.3.10.0100.06313.42
5.3.00.0070.04313.59
5.2.170.0070.04010.96
5.2.160.0030.03011.06
5.2.150.0000.05011.21
5.2.140.0000.03711.05
5.2.130.0130.05011.13
5.2.120.0000.05011.09
5.2.110.0070.06010.96
5.2.100.0000.06011.05
5.2.90.0070.05311.08
5.2.80.0030.03711.09
5.2.70.0070.03311.11
5.2.60.0070.06010.88
5.2.50.0130.03010.97
5.2.40.0000.03710.86
5.2.30.0000.05710.89
5.2.20.0030.05010.88
5.2.10.0070.03010.71
5.2.00.0100.02310.77
5.1.60.0070.04710.55
5.1.50.0030.02310.55
5.1.40.0000.03010.55
5.1.30.0000.03010.55
5.1.20.0000.05310.55
5.1.10.0000.03710.55
5.1.00.0030.02710.55
5.0.50.0030.03710.55
5.0.40.0030.04710.55
5.0.30.0100.03710.55
5.0.20.0000.02710.55
5.0.10.0000.02010.55
5.0.00.0030.05310.55
4.4.90.0000.03010.55
4.4.80.0070.03010.55
4.4.70.0030.01710.55
4.4.60.0000.03710.55
4.4.50.0030.03310.55
4.4.40.0030.03310.55
4.4.30.0070.01010.55
4.4.20.0070.03310.55
4.4.10.0000.02010.55
4.4.00.0030.02710.55
4.3.110.0030.02310.55
4.3.100.0000.01710.55
4.3.90.0000.01710.55
4.3.80.0030.04010.55
4.3.70.0070.03010.55
4.3.60.0000.03310.55
4.3.50.0030.01710.55
4.3.40.0000.05310.55
4.3.30.0030.03310.55
4.3.20.0030.03710.55
4.3.10.0000.04010.55
4.3.00.0000.03710.55

preferences:
37.96 ms | 400 KiB | 5 Q