3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 0x40; // equivalent decimal value assigned to $a var_dump($a); // 64 in base 10 var_dump(base_convert($a, 10, 2)); // not base_convert($a, 16, 2) == 2 ** 6 or 1000000 $b = ~$a; // flip bits, i.e. 2s complement so -$a and then minus 1 var_dump($b); // -65 var_dump(base_convert($b, 10, 2), $b);// not base_convert($b, 16,2); but base_convert can't handle negative values! printf("%b", $b); // decimal 65 expressed in binary echo "\n\n";

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)
8.3.60.0040.01118.29
8.3.50.0140.00721.27
8.3.40.0100.00318.84
8.3.30.0110.00420.21
8.3.20.0100.00320.16
8.3.10.0040.00421.83
8.3.00.0070.00022.20
8.2.180.0130.00316.75
8.2.170.0070.01022.96
8.2.160.0060.00922.21
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00720.75
8.2.110.0080.00020.32
8.2.100.0090.00317.91
8.2.90.0050.00319.18
8.2.80.0000.00819.18
8.2.70.0060.00317.63
8.2.60.0060.00617.80
8.2.50.0080.00018.07
8.2.40.0030.00517.99
8.2.30.0040.00419.41
8.2.20.0000.00917.64
8.2.10.0040.00417.57
8.2.00.0040.00717.63
8.1.270.0060.00323.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00417.36
8.1.230.0060.00619.21
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0050.00517.11
8.1.190.0080.00017.41
8.1.180.0040.00418.10
8.1.170.0030.00618.66
8.1.160.0000.00718.73
8.1.150.0030.00518.57
8.1.140.0000.00817.36
8.1.130.0030.00317.75
8.1.120.0030.00517.32
8.1.110.0050.00317.23
8.1.100.0000.00717.28
8.1.90.0070.00017.34
8.1.80.0000.00717.26
8.1.70.0030.00317.36
8.1.60.0030.00517.48
8.1.50.0000.00717.30
8.1.40.0050.00517.44
8.1.30.0000.00717.40
8.1.20.0060.00317.48
8.1.10.0040.00417.38
8.1.00.0040.00417.48
8.0.300.0030.00618.77
8.0.290.0040.00417.16
8.0.280.0040.00418.49
8.0.270.0030.00317.24
8.0.260.0000.00716.87
8.0.250.0030.00316.94
8.0.240.0050.00316.93
8.0.230.0020.00516.96
8.0.220.0070.00016.79
8.0.210.0050.00216.77
8.0.200.0000.00716.82
8.0.190.0070.00016.86
8.0.180.0030.00316.90
8.0.170.0050.00316.92
8.0.160.0040.00416.83
8.0.150.0030.00316.71
8.0.140.0090.00316.68
8.0.130.0000.00613.28
8.0.120.0080.00016.84
8.0.110.0020.00516.74
8.0.100.0080.00016.84
8.0.90.0030.00416.71
8.0.80.0060.00916.88
8.0.70.0050.00316.94
8.0.60.0040.00416.75
8.0.50.0070.00016.69
8.0.30.0100.00817.20
8.0.20.0060.01217.40
8.0.10.0000.00717.00
8.0.00.0110.00916.81
7.4.330.0000.00516.79
7.4.320.0030.00316.46
7.4.300.0030.00316.39
7.4.290.0070.00016.47
7.4.280.0000.00716.39
7.4.270.0000.00716.45
7.4.260.0000.00513.29
7.4.250.0050.00216.55
7.4.240.0020.00516.58
7.4.230.0030.00316.29
7.4.220.0040.01416.47
7.4.210.0070.00716.59
7.4.200.0030.00316.39
7.4.190.0020.00516.62
7.4.160.0060.00916.51
7.4.150.0070.01117.40
7.4.140.0120.00617.86
7.4.130.0090.00916.47
7.4.120.0100.00616.49
7.4.110.0100.00716.29
7.4.100.0140.00716.36
7.4.90.0070.01016.60
7.4.80.0080.01019.39
7.4.70.0130.00616.59
7.4.60.0070.01016.55
7.4.50.0090.00016.61
7.4.40.0060.00922.77
7.4.30.0090.00616.53
7.4.00.0060.00914.69
7.3.330.0000.00613.02
7.3.320.0000.00512.92
7.3.310.0040.00416.06
7.3.300.0000.00716.02
7.3.290.0110.00416.23
7.3.280.0080.00716.21
7.3.270.0000.01717.40
7.3.260.0200.00316.53
7.3.250.0100.00716.22
7.3.240.0090.00916.46
7.3.230.0130.00416.45
7.3.210.0120.00316.05
7.3.200.0120.01219.39
7.3.190.0120.00616.29
7.3.180.0090.00716.46
7.3.170.0070.00916.51
7.3.160.0100.01016.17
7.3.120.0030.01315.04
7.2.330.0070.01016.24
7.2.320.0100.01316.50
7.2.310.0110.00616.56
7.2.300.0140.00816.68
7.2.290.0060.01016.38
7.1.70.0000.01316.83
7.1.60.0070.01619.17
7.1.50.0130.01334.66
7.1.00.0030.07322.32
7.0.200.0040.00416.89
7.0.140.0100.06721.99
7.0.100.0070.04319.96
7.0.90.0100.07319.93
7.0.80.0430.07719.92
7.0.70.0100.08020.01
7.0.60.0470.07719.88
7.0.50.0130.07320.23
7.0.40.0130.08020.10
7.0.30.0030.09020.13
7.0.20.0030.08720.19
7.0.10.0100.07020.09
7.0.00.0130.07319.99
5.6.280.0100.06721.07
5.6.250.0130.07720.56
5.6.240.0100.09020.63
5.6.230.0070.05720.53
5.6.220.0070.04720.57
5.6.210.0000.08020.42
5.6.200.0130.07020.94
5.6.190.0070.07721.05
5.6.180.0200.06721.07
5.6.170.0070.08721.04
5.6.160.0100.06721.05
5.6.150.0070.04321.02
5.6.140.0100.07721.08
5.6.130.0070.04021.01
5.6.120.0070.08320.94
5.6.110.0170.03021.02
5.6.100.0030.06021.05
5.6.90.0030.06320.90
5.6.80.0170.06720.52
5.6.70.0100.06320.43
5.6.60.0130.04020.40
5.6.50.0070.08020.48
5.6.40.0130.04020.36
5.6.30.0100.07320.46
5.6.20.0100.07020.30
5.6.10.0100.05320.35
5.6.00.0000.05320.38
5.5.380.0070.04720.48
5.5.370.0030.04320.38
5.5.360.0070.04720.53
5.5.350.0130.04020.46
5.5.340.0070.08320.75
5.5.330.0100.03720.92
5.5.320.0070.05320.77
5.5.310.0100.08320.88
5.5.300.0070.07720.85
5.5.290.0070.06720.88
5.5.280.0030.08020.77
5.5.270.0070.07720.71
5.5.260.0100.03720.88
5.5.250.0170.07020.67
5.5.240.0030.05020.30
5.5.230.0070.08020.13
5.5.220.0130.03320.15
5.5.210.0030.04720.25
5.5.200.0000.05020.14
5.5.190.0100.06320.24
5.5.180.0100.06719.97
5.5.160.0030.09020.25
5.5.150.0070.04320.17
5.5.140.0170.06320.07
5.5.130.0070.04720.14
5.5.120.0070.05319.94
5.5.110.0000.09020.13
5.5.100.0100.06320.07
5.5.90.0130.06720.04
5.5.80.0100.06720.17
5.5.70.0070.07720.03
5.5.60.0030.04020.09
5.5.50.0130.07320.04
5.5.40.0000.05720.14
5.5.30.0100.03320.13
5.5.20.0070.04320.13
5.5.10.0030.07719.94
5.5.00.0070.04720.03
5.4.450.0100.03719.36
5.4.440.0030.08719.40
5.4.430.0000.06319.55
5.4.420.0070.03719.28
5.4.410.0170.02719.22
5.4.400.0070.07719.10
5.4.390.0000.04719.06
5.4.380.0130.06719.23
5.4.370.0100.07318.78
5.4.360.0030.06019.23
5.4.350.0070.07719.03
5.4.340.0100.09719.14
5.4.320.0030.05019.14
5.4.310.0030.07718.98
5.4.300.0030.04018.96
5.4.290.0070.04018.96
5.4.280.0100.06319.11
5.4.270.0030.07719.05
5.4.260.0100.06318.83
5.4.250.0200.04719.02
5.4.240.0130.06719.07
5.4.230.0070.05719.10
5.4.220.0100.07718.97
5.4.210.0100.06719.05
5.4.200.0070.05719.22
5.4.190.0000.04319.01
5.4.180.0000.04719.23
5.4.170.0030.06719.02
5.4.160.0100.07719.09
5.4.150.0070.08019.21
5.4.140.0070.08016.21
5.4.130.0000.06316.28
5.4.120.0100.07016.13
5.4.110.0100.06316.21
5.4.100.0130.06316.29
5.4.90.0100.05316.43
5.4.80.0070.06716.25
5.4.70.0070.04016.28
5.4.60.0030.04316.23
5.4.50.0030.06716.41
5.4.40.0100.07316.29
5.4.30.0070.06316.41
5.4.20.0070.07316.27
5.4.10.0070.07016.28
5.4.00.0030.07015.73
5.3.290.0000.05014.65
5.3.280.0030.06314.41
5.3.270.0130.06314.56
5.3.260.0070.05014.55
5.3.250.0070.07014.60
5.3.240.0170.03314.54
5.3.230.0070.07714.57
5.3.220.0070.07014.42
5.3.210.0030.06714.57
5.3.200.0070.06014.43
5.3.190.0100.07314.55
5.3.180.0130.04714.42
5.3.170.0070.07714.52
5.3.160.0070.06714.53
5.3.150.0030.05314.57
5.3.140.0070.08314.55
5.3.130.0030.06314.48
5.3.120.0100.07314.52
5.3.110.0070.07314.46
5.3.100.0100.07314.05
5.3.90.0100.06014.02
5.3.80.0000.04313.92
5.3.70.0000.07713.79
5.3.60.0030.06313.98
5.3.50.0130.03313.94
5.3.40.0030.07713.80
5.3.30.0070.07013.90
5.3.20.0100.07013.48
5.3.10.0000.06313.50
5.3.00.0030.07013.64
5.2.170.0100.04311.21
5.2.160.0000.05311.16
5.2.150.0130.05311.19
5.2.140.0030.06011.10
5.2.130.0070.05711.05
5.2.120.0030.06310.93
5.2.110.0030.03311.09
5.2.100.0100.05310.93
5.2.90.0100.07011.12
5.2.80.0070.05310.88
5.2.70.0070.06310.90
5.2.60.0000.06311.00
5.2.50.0030.06010.96
5.2.40.0030.06310.91
5.2.30.0000.06010.96
5.2.20.0000.06310.88
5.2.10.0030.03310.86
5.2.00.0100.05310.61
5.1.60.0000.05710.10
5.1.50.0000.0509.97
5.1.40.0030.0409.80
5.1.30.0000.06010.23
5.1.20.0070.04710.28
5.1.10.0030.0309.92
5.1.00.0000.03310.15
5.0.50.0100.0278.61
5.0.40.0100.0178.48
5.0.30.0070.0278.25
5.0.20.0030.0278.30
5.0.10.0070.0238.07
5.0.00.0000.0478.26
4.4.90.0000.0208.07
4.4.80.0000.0278.07
4.4.70.0000.0308.07
4.4.60.0000.0238.07
4.4.50.0070.0308.07
4.4.40.0070.0438.07
4.4.30.0070.0278.07
4.4.20.0030.0278.07
4.4.10.0000.0238.07
4.4.00.0030.0478.07
4.3.110.0000.0378.07
4.3.100.0000.0178.07
4.3.90.0030.0208.07
4.3.80.0000.0508.07
4.3.70.0030.0208.07
4.3.60.0030.0308.07
4.3.50.0000.0178.07
4.3.40.0000.0538.07
4.3.30.0000.0338.07
4.3.20.0070.0178.07
4.3.10.0000.0178.07
4.3.00.0000.0178.07

preferences:
85.15 ms | 400 KiB | 5 Q