3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 0x40; $b = ~$a; // flip bits, i.e. 2s complement so -$a and then minus 1 var_dump("var_dump: $b"); // -65 printf("\nprintf: %d\n\n", $b); var_dump( base_convert($b, 10, 2) ); // 65 // **************************// // should be: printf("\nprintf: %b\n\n", $b); echo hexbin(0x40);

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)
8.3.60.0150.00618.56
8.3.50.0130.01221.92
8.3.40.0090.00618.70
8.3.30.0100.00318.72
8.3.20.0040.00420.26
8.3.10.0080.00020.61
8.3.00.0070.00320.64
8.2.180.0130.00718.41
8.2.170.0070.00722.96
8.2.160.0070.00722.00
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0000.00821.04
8.2.120.0040.00426.35
8.2.110.0060.00321.02
8.2.100.0110.00017.84
8.2.90.0040.00417.88
8.2.80.0060.00317.97
8.2.70.0080.00317.93
8.2.60.0000.00818.09
8.2.50.0060.00318.10
8.2.40.0020.00519.48
8.2.30.0030.00522.30
8.2.20.0000.00817.64
8.2.10.0020.00517.92
8.2.00.0040.00418.04
8.1.280.0000.01425.92
8.1.270.0090.01223.84
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00417.36
8.1.230.0070.00318.86
8.1.220.0000.00817.79
8.1.210.0080.00018.77
8.1.200.0090.00017.22
8.1.190.0030.00517.23
8.1.180.0050.00318.10
8.1.170.0040.00418.82
8.1.160.0070.00022.04
8.1.150.0040.00418.81
8.1.140.0000.00819.54
8.1.130.0040.00417.54
8.1.120.0040.00417.46
8.1.110.0030.00517.40
8.1.100.0000.00817.45
8.1.90.0080.00017.39
8.1.80.0000.00817.27
8.1.70.0030.00317.38
8.1.60.0000.00717.40
8.1.50.0000.00817.54
8.1.40.0040.00717.45
8.1.30.0030.00517.59
8.1.20.0000.00717.40
8.1.10.0040.00417.44
8.1.00.0030.00617.42
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0040.00418.49
8.0.270.0000.00717.25
8.0.260.0000.00717.15
8.0.250.0030.00617.02
8.0.240.0000.00716.98
8.0.230.0000.00717.07
8.0.220.0020.00516.98
8.0.210.0030.00316.86
8.0.200.0060.00017.02
8.0.190.0040.00417.06
8.0.180.0040.00416.84
8.0.170.0000.00716.87
8.0.160.0000.00716.95
8.0.150.0060.00316.93
8.0.140.0000.00716.96
8.0.130.0000.00613.33
8.0.120.0030.00516.79
8.0.110.0080.00016.79
8.0.100.0000.00716.96
8.0.90.0000.00716.91
8.0.80.0060.01417.01
8.0.70.0040.00416.66
8.0.60.0050.00216.95
8.0.50.0040.00416.68
8.0.30.0070.01116.92
8.0.20.0100.00917.40
8.0.10.0040.00416.97
8.0.00.0050.01216.70
7.4.330.0000.00616.67
7.4.320.0060.00016.51
7.4.300.0070.00016.39
7.4.290.0030.00316.43
7.4.280.0100.00016.50
7.4.270.0000.00716.58
7.4.260.0000.00916.47
7.4.250.0050.00316.47
7.4.240.0030.00316.52
7.4.230.0040.00416.47
7.4.220.0060.01516.52
7.4.210.0090.00916.53
7.4.200.0050.00316.68
7.4.160.0110.00616.57
7.4.150.0150.00417.40
7.4.140.0050.01417.86
7.4.130.0130.00616.61
7.4.120.0060.01516.50
7.4.110.0100.00616.54
7.4.100.0190.00316.59
7.4.90.0140.00316.61
7.4.80.0110.01119.39
7.4.70.0110.00516.59
7.4.60.0060.01116.49
7.4.50.0060.00816.66
7.4.40.0080.00816.39
7.4.30.0100.01016.55
7.4.00.0080.00715.08
7.3.330.0020.00213.18
7.3.320.0040.00413.06
7.3.310.0000.00716.45
7.3.300.0000.00716.32
7.3.290.0050.01116.38
7.3.280.0060.01016.34
7.3.270.0120.00617.40
7.3.260.0030.02116.68
7.3.240.0110.00616.28
7.3.230.0100.00716.50
7.3.210.0070.01316.42
7.3.200.0090.00616.27
7.3.190.0030.01516.66
7.3.180.0150.00216.43
7.3.170.0120.00616.51
7.3.160.0090.00616.47
7.3.120.0060.01014.50
7.3.110.0030.01314.49
7.3.100.0030.01014.64
7.3.90.0060.00914.79
7.3.80.0040.01114.80
7.3.70.0060.00614.78
7.3.60.0000.01714.72
7.3.50.0060.00614.78
7.3.40.0000.01114.86
7.3.30.0070.00414.80
7.3.20.0100.00716.74
7.3.10.0060.00816.69
7.3.00.0070.00816.49
7.2.330.0090.00916.61
7.2.320.0040.01816.31
7.2.310.0090.00616.64
7.2.300.0140.00616.57
7.2.290.0080.00816.50
7.2.250.0000.01515.05
7.2.240.0120.00314.52
7.2.230.0100.00315.14
7.2.220.0110.00714.58
7.2.210.0000.01314.86
7.2.200.0040.00714.98
7.2.190.0070.01014.94
7.2.180.0090.00614.91
7.2.170.0000.01514.66
7.2.130.0000.01016.77
7.2.120.0030.00916.72
7.2.110.0070.00416.81
7.2.100.0070.00716.85
7.2.90.0030.01016.91
7.2.80.0100.00616.96
7.2.70.0140.00016.89
7.2.60.0110.00516.92
7.2.50.0030.01316.55
7.2.40.0040.01216.90
7.2.30.0070.01016.92
7.2.20.0150.00416.88
7.2.10.0090.00616.70
7.2.00.0040.00818.15
7.1.330.0110.00415.98
7.1.320.0030.00615.68
7.1.310.0060.00615.73
7.1.300.0000.01115.88
7.1.290.0100.00015.67
7.1.280.0000.01415.48
7.1.270.0040.01015.78
7.1.260.0090.00315.91
7.1.250.0030.01215.87
7.1.200.0000.01515.82
7.1.100.0060.00617.68
7.1.70.0000.00817.08
7.1.60.0070.01419.27
7.1.50.0030.01616.79
7.1.00.0100.07022.45
7.0.200.0300.00714.25
7.0.60.0070.07721.80
7.0.50.0230.06017.81
7.0.40.0070.05320.05
7.0.30.0170.06020.18
7.0.20.0200.04720.18
7.0.10.0030.05320.17
7.0.00.0170.07320.16
5.6.280.0030.06721.07
5.6.210.0030.04320.50
5.6.200.0100.08018.12
5.6.190.0000.05320.39
5.6.180.0300.08320.61
5.6.170.0300.04020.44
5.6.160.0030.05320.44
5.6.150.0070.07318.18
5.6.140.0200.04018.22
5.6.130.0100.03318.21
5.6.120.0000.08721.09
5.6.110.0100.08021.00
5.6.100.0000.04320.97
5.6.90.0130.06321.00
5.6.80.0070.09020.39
5.5.350.0230.04320.43
5.5.340.0070.07717.93
5.5.330.0030.04320.50
5.5.320.0330.07020.31
5.5.310.0270.05020.27
5.5.300.0000.04717.96
5.5.290.0200.07017.93
5.5.280.0070.06020.88
5.5.270.0100.08720.83
5.5.260.0030.07720.71
5.5.250.0130.07720.68
5.5.240.0030.06320.11

preferences:
68.91 ms | 401 KiB | 5 Q