3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 0x80; // 128 base 10 var_dump($a); var_dump(base_convert($a, 10, 2)); // not base_convert($a, 16, 2) $b = ~$a; // -128 - 1 == -129 base 10 var_dump($b); var_dump(base_convert($b, 10, 2), $b);// not base_convert($b, 16,2); can base_convert handle negative values? printf("%x", $b); echo "\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)
8.3.60.0090.00618.30
8.3.50.0130.00821.27
8.3.40.0100.01019.02
8.3.30.0060.00920.37
8.3.20.0060.00320.29
8.3.10.0080.00022.10
8.3.00.0040.00422.52
8.2.180.0100.01016.88
8.2.170.0110.00722.96
8.2.160.0070.01022.12
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0080.00020.87
8.2.110.0030.00622.19
8.2.100.0110.00017.72
8.2.90.0000.00919.09
8.2.80.0000.00719.12
8.2.70.0030.00617.63
8.2.60.0000.00818.04
8.2.50.0040.00418.07
8.2.40.0050.00318.15
8.2.30.0000.00719.31
8.2.20.0080.00017.47
8.2.10.0030.00617.59
8.2.00.0000.01117.75
8.1.280.0110.00425.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00023.83
8.1.230.0080.00419.04
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0080.00017.30
8.1.180.0000.00818.10
8.1.170.0060.00318.50
8.1.160.0040.00418.79
8.1.150.0070.00018.57
8.1.140.0030.00617.45
8.1.130.0040.00417.80
8.1.120.0040.00417.31
8.1.110.0030.00317.34
8.1.100.0080.00017.38
8.1.90.0040.00317.29
8.1.80.0040.00417.44
8.1.70.0070.00017.36
8.1.60.0060.00317.53
8.1.50.0000.00817.51
8.1.40.0060.00517.43
8.1.30.0040.00417.47
8.1.20.0030.00617.56
8.1.10.0040.00417.55
8.1.00.0000.00717.41
8.0.300.0080.00018.77
8.0.290.0040.00417.18
8.0.280.0080.00018.34
8.0.270.0040.00417.24
8.0.260.0030.00316.88
8.0.250.0070.00016.99
8.0.240.0030.00516.99
8.0.230.0000.00716.98
8.0.220.0030.00316.86
8.0.210.0030.00316.89
8.0.200.0000.00716.91
8.0.190.0040.00416.95
8.0.180.0040.00416.79
8.0.170.0080.00016.89
8.0.160.0070.00016.85
8.0.150.0030.00316.86
8.0.140.0060.00316.89
8.0.130.0050.00013.19
8.0.120.0080.00016.82
8.0.110.0000.00716.78
8.0.100.0040.00416.86
8.0.90.0000.00716.86
8.0.80.0060.00916.90
8.0.70.0070.00016.83
8.0.60.0070.00016.92
8.0.50.0030.00516.84
8.0.30.0080.01017.02
8.0.20.0060.01417.40
8.0.10.0000.00716.95
8.0.00.0090.00816.62
7.4.330.0000.00416.67
7.4.320.0030.00316.50
7.4.300.0060.00016.41
7.4.290.0070.00016.52
7.4.280.0000.00716.55
7.4.270.0000.00816.48
7.4.260.0030.00613.38
7.4.250.0070.00016.55
7.4.240.0030.00516.56
7.4.230.0040.00416.49
7.4.220.0070.01116.54
7.4.210.0070.01016.58
7.4.200.0030.00316.30
7.4.190.0070.00016.72
7.4.160.0080.00816.34
7.4.150.0070.01017.40
7.4.140.0080.01017.86
7.4.130.0030.01416.57
7.4.120.0120.00516.57
7.4.110.0060.01116.53
7.4.100.0040.01216.55
7.4.90.0110.00516.41
7.4.80.0080.01019.39
7.4.70.0090.00616.33
7.4.60.0080.01216.38
7.4.50.0060.00316.21
7.4.40.0070.00722.77
7.4.30.0100.00616.48
7.4.10.0050.01015.69
7.4.00.0080.01015.40
7.3.330.0020.00213.01
7.3.320.0070.00013.04
7.3.310.0000.00616.19
7.3.300.0030.00316.13
7.3.290.0060.00616.21
7.3.280.0120.00616.18
7.3.270.0080.00817.40
7.3.260.0130.00316.23
7.3.250.0110.00816.27
7.3.240.0110.01116.43
7.3.230.0090.00816.39
7.3.210.0060.01916.42
7.3.200.0040.01319.39
7.3.190.0080.00816.55
7.3.180.0030.01316.34
7.3.170.0120.00916.27
7.3.160.0030.01216.47
7.3.130.0110.00615.40
7.3.120.0060.01215.20
7.3.110.0080.00915.57
7.3.100.0050.00815.69
7.3.90.0040.00915.48
7.3.80.0050.00715.36
7.3.70.0070.00715.51
7.3.60.0070.00815.37
7.3.50.0070.00615.36
7.3.40.0040.00715.36
7.3.30.0030.01015.49
7.3.20.0060.00717.36
7.3.10.0090.00616.99
7.3.00.0050.00716.94
7.2.330.0060.01616.72
7.2.320.0140.00316.67
7.2.310.0060.01016.50
7.2.300.0060.01516.63
7.2.290.0030.01316.58
7.2.260.0100.01015.67
7.2.250.0070.01215.73
7.2.240.0050.00915.53
7.2.230.0090.00615.68
7.2.220.0040.01015.61
7.2.210.0050.00815.81
7.2.200.0050.00915.64
7.2.190.0050.01115.68
7.2.180.0060.00715.58
7.2.170.0050.00915.53
7.2.160.0020.01115.73
7.2.150.0050.00917.54
7.2.140.0100.00617.48
7.2.130.0060.00617.32
7.2.120.0070.00817.09
7.2.110.0080.00417.14
7.2.100.0060.00617.35
7.2.90.0060.00717.22
7.2.80.0060.00917.33
7.2.70.0070.00617.25
7.2.60.0040.00917.19
7.2.50.0040.00717.30
7.2.40.0090.00417.30
7.2.30.0050.01117.22
7.2.20.0020.01217.25
7.2.10.0050.01017.21
7.2.00.0050.01117.80
7.1.330.0040.01116.44
7.1.320.0050.00516.55
7.1.310.0050.01016.36
7.1.300.0060.00916.41
7.1.290.0020.01116.57
7.1.280.0090.00516.25
7.1.270.0080.00516.43
7.1.260.0050.00816.48
7.1.250.0030.00816.30
7.1.240.0050.00816.53
7.1.230.0030.00716.49
7.1.220.0050.00816.47
7.1.210.0050.00816.52
7.1.200.0040.00816.56
7.1.190.0010.01116.40
7.1.180.0030.00916.57
7.1.170.0070.00516.44
7.1.160.0020.01216.56
7.1.150.0070.00416.45
7.1.140.0090.00316.47
7.1.130.0080.00616.43
7.1.120.0070.00716.43
7.1.110.0020.01216.53
7.1.100.0060.00916.95
7.1.90.0040.00716.54
7.1.80.0050.00916.41
7.1.70.0070.00416.72
7.1.60.0070.01117.37
7.1.50.0050.01416.55
7.1.40.0070.00716.62
7.1.30.0090.00516.50
7.1.20.0080.00516.48
7.1.10.0060.00916.57
7.1.00.0070.01518.48
7.0.330.0060.00616.01
7.0.320.0030.00916.20
7.0.310.0040.00716.19
7.0.300.0060.00516.12
7.0.290.0040.00616.18
7.0.280.0030.00816.05
7.0.270.0040.00916.03
7.0.260.0070.00616.09
7.0.250.0050.01016.35
7.0.240.0050.00616.17
7.0.230.0100.00316.28
7.0.220.0020.00916.25
7.0.210.0070.00516.34
7.0.200.0080.00616.32
7.0.190.0020.01616.22
7.0.180.0050.00916.26
7.0.170.0060.00616.26
7.0.160.0120.00116.28
7.0.150.0030.01215.98
7.0.140.0050.03018.14
7.0.130.0080.00816.12
7.0.120.0030.01116.20
7.0.110.0020.01116.07
7.0.100.0030.00816.06
7.0.90.0020.01016.22
7.0.80.0050.00516.15
7.0.70.0060.02617.96
7.0.60.0050.01818.05
7.0.50.0080.02918.14
7.0.40.0050.03216.08
7.0.30.0070.03316.23
7.0.20.0030.03516.09
7.0.10.0070.03316.16
7.0.00.0070.01916.17
5.6.400.0050.01015.03
5.6.390.0030.01015.02
5.6.380.0030.01015.11
5.6.370.0050.00415.04
5.6.360.0050.00915.12
5.6.350.0040.00814.80
5.6.340.0090.00615.28
5.6.330.0040.01114.96
5.6.320.0110.00614.83
5.6.310.0030.01015.05
5.6.300.0050.00815.13
5.6.290.0050.01214.88
5.6.280.0080.02617.11
5.6.270.0040.01115.05
5.6.260.0050.00715.09
5.6.250.0080.00514.98
5.6.240.0080.00514.96
5.6.230.0050.00815.14
5.6.220.0050.01716.92
5.6.210.0020.02116.88
5.6.200.0070.03016.99
5.6.190.0080.03117.01
5.6.180.0040.03316.98
5.6.170.0040.03317.04
5.6.160.0060.02616.99
5.6.150.0070.03316.97
5.6.140.0060.02417.10
5.6.130.0070.03117.08
5.6.120.0070.03017.01
5.6.110.0070.03417.07
5.6.100.0110.02316.98
5.6.90.0050.03116.96
5.6.80.0060.02616.75
5.6.70.0080.02516.81
5.6.60.0030.02816.72
5.6.50.0040.02916.82
5.6.40.0050.02216.76
5.6.30.0040.03116.87
5.6.20.0050.02016.76
5.6.10.0080.02416.85
5.6.00.0020.02016.76
5.5.380.0060.00514.89
5.5.370.0050.00715.03
5.5.360.0040.01616.75
5.5.350.0050.01616.84
5.5.340.0050.03417.01
5.5.330.0040.02116.95
5.5.320.0050.03216.95
5.5.310.0050.03416.71
5.5.300.0080.02616.95
5.5.290.0040.02316.85
5.5.280.0040.02716.84
5.5.270.0060.03216.94
5.5.260.0020.03016.83
5.5.250.0050.02316.77
5.5.240.0070.03016.68
5.5.230.0060.03316.58
5.5.220.0060.02516.57
5.5.210.0050.03116.52
5.5.200.0090.03016.68
5.5.190.0060.03316.68
5.5.180.0020.02516.61
5.5.170.0120.00514.88
5.5.160.0080.03016.43
5.5.150.0060.03416.65
5.5.140.0070.02916.62
5.5.130.0050.03316.47
5.5.120.0070.03216.68
5.5.110.0030.03616.70
5.5.100.0070.02216.64
5.5.90.0050.02916.60
5.5.80.0050.03216.79
5.5.70.0040.03116.60
5.5.60.0050.01816.58
5.5.50.0040.03116.70
5.5.40.0070.03216.57
5.5.30.0030.03416.56
5.5.20.0090.01316.73
5.5.10.0070.02116.71
5.5.00.0040.02716.54
5.4.450.0050.02914.48
5.4.440.0020.03114.55
5.4.430.0050.02714.52
5.4.420.0060.02814.55
5.4.410.0070.02714.51
5.4.400.0050.01914.43
5.4.390.0040.02814.36
5.4.380.0040.03014.49
5.4.370.0040.03214.46
5.4.360.0040.02614.34
5.4.350.0030.03414.38
5.4.340.0050.02914.41
5.4.330.0050.00612.09
5.4.320.0030.03014.49
5.4.310.0070.03014.45
5.4.300.0080.02614.36
5.4.290.0030.02514.31
5.4.280.0060.02714.39
5.4.270.0070.02714.48
5.4.260.0040.03114.35
5.4.250.0060.03014.33
5.4.240.0020.02314.43
5.4.230.0040.02314.44
5.4.220.0070.02914.40
5.4.210.0050.02814.38
5.4.200.0030.03014.38
5.4.190.0080.02614.42
5.4.180.0060.02214.45
5.4.170.0060.02114.46
5.4.160.0050.02214.47
5.4.150.0040.02114.39
5.4.140.0070.01813.59
5.4.130.0040.01813.50
5.4.120.0050.02813.47
5.4.110.0050.03013.57
5.4.100.0040.02313.51
5.4.90.0070.02413.53
5.4.80.0030.03013.54
5.4.70.0030.02713.55
5.4.60.0040.02913.51
5.4.50.0080.02813.53
5.4.40.0050.02913.57
5.4.30.0040.02813.52
5.4.20.0060.02613.46
5.4.10.0020.03213.54
5.4.00.0030.02113.35
5.3.290.0050.02613.16
5.3.280.0050.02413.06
5.3.270.0040.02113.07
5.3.260.0050.02913.11
5.3.250.0090.01813.09
5.3.240.0060.03213.16
5.3.230.0050.03213.10
5.3.220.0070.03013.04
5.3.210.0060.03213.04
5.3.200.0090.02013.04
5.3.190.0020.02113.00
5.3.180.0040.02013.05
5.3.170.0060.02813.10
5.3.160.0070.02613.14
5.3.150.0050.02413.03
5.3.140.0100.02713.10
5.3.130.0050.02913.10
5.3.120.0070.02913.01
5.3.110.0050.02413.02
5.3.100.0030.02712.85
5.3.90.0110.02512.85
5.3.80.0070.02712.84
5.3.70.0060.02312.88
5.3.60.0050.03012.82
5.3.50.0060.02912.82
5.3.40.0060.01912.73
5.3.30.0050.03012.86
5.3.20.0020.03012.72
5.3.10.0040.02612.58
5.3.00.0070.02412.66
5.2.170.0070.06012.24
5.2.160.0070.06012.24
5.2.150.0030.06312.24
5.2.140.0070.06012.24
5.2.130.0030.05712.24
5.2.120.0030.05012.24
5.2.110.0030.06312.24
5.2.100.0000.06312.24
5.2.90.0070.03712.24
5.2.80.0070.06012.24
5.2.70.0030.05012.24
5.2.60.0070.04312.24
5.2.50.0070.05712.24
5.2.40.0000.05012.24
5.2.30.0000.04012.24
5.2.20.0000.06012.24
5.2.10.0100.05012.24
5.2.00.0030.04312.24
5.1.60.0070.04712.24
5.1.50.0030.05312.24
5.1.40.0000.05312.24
5.1.30.0000.06012.24
5.1.20.0000.04012.24
5.1.10.0030.05712.24
5.1.00.0000.04012.24
5.0.50.0030.04712.24
5.0.40.0030.04012.24
5.0.30.0030.04312.24
5.0.20.0000.04312.24
5.0.10.0000.04712.24
5.0.00.0000.06712.24
4.4.90.0070.03012.24
4.4.80.0030.03012.24
4.4.70.0030.03712.24
4.4.60.0000.03312.24
4.4.50.0000.03312.24
4.4.40.0030.05312.24
4.4.30.0030.03712.24
4.4.20.0000.02312.24
4.4.10.0070.02012.24
4.4.00.0000.04712.24
4.3.110.0030.02312.24
4.3.100.0070.03012.24
4.3.90.0070.02712.24
4.3.80.0000.04012.24
4.3.70.0000.02712.24
4.3.60.0000.02312.24
4.3.50.0030.02712.24
4.3.40.0000.05312.24
4.3.30.0000.03312.24
4.3.20.0000.03712.24
4.3.10.0000.03712.24
4.3.00.0030.03012.24

preferences:
50.57 ms | 401 KiB | 5 Q