3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 0x80; var_dump(base_convert($a, 16, 2),$a); $b = -$a; var_dump(base_convert($b, 16, 2), $b); printf("%b", $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)
8.3.60.0140.00718.43
8.3.50.0120.00722.05
8.3.40.0090.00618.71
8.3.30.0070.00718.94
8.3.20.0070.00020.22
8.3.10.0080.00022.04
8.3.00.0000.00822.34
8.2.180.0200.00316.75
8.2.170.0150.00622.96
8.2.160.0100.00320.95
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0060.00319.25
8.2.110.0090.00922.13
8.2.100.0090.00321.01
8.2.90.0030.00519.21
8.2.80.0000.00917.97
8.2.70.0030.00617.63
8.2.60.0060.00317.93
8.2.50.0050.00318.07
8.2.40.0040.00418.16
8.2.30.0000.00717.97
8.2.20.0030.00517.63
8.2.10.0050.00317.77
8.2.00.0040.00817.63
8.1.280.0130.00725.92
8.1.270.0090.00022.08
8.1.260.0070.01126.35
8.1.250.0000.01428.09
8.1.240.0050.00323.98
8.1.230.0080.00419.09
8.1.220.0060.00317.74
8.1.210.0030.00618.77
8.1.200.0110.00017.35
8.1.190.0070.00017.30
8.1.180.0050.00318.73
8.1.170.0040.00418.52
8.1.160.0040.00421.81
8.1.150.0040.00418.60
8.1.140.0050.00317.33
8.1.130.0030.00317.82
8.1.120.0030.00517.36
8.1.110.0000.00717.25
8.1.100.0000.00817.33
8.1.90.0040.00417.32
8.1.80.0030.00317.28
8.1.70.0070.00017.26
8.1.60.0050.00317.52
8.1.50.0000.00717.48
8.1.40.0000.00917.34
8.1.30.0020.00517.46
8.1.20.0040.00417.48
8.1.10.0050.00217.54
8.1.00.0040.00417.34
8.0.300.0040.00418.77
8.0.290.0000.00717.18
8.0.280.0100.00018.37
8.0.270.0030.00317.25
8.0.260.0000.00716.77
8.0.250.0030.00317.00
8.0.240.0030.00316.93
8.0.230.0000.00716.92
8.0.220.0000.00816.79
8.0.210.0040.00416.92
8.0.200.0060.00017.00
8.0.190.0020.00516.92
8.0.180.0000.00716.89
8.0.170.0000.00816.75
8.0.160.0040.00416.93
8.0.150.0000.00816.81
8.0.140.0000.00716.73
8.0.130.0050.00313.27
8.0.120.0090.00016.89
8.0.110.0080.00016.83
8.0.100.0040.00416.77
8.0.90.0040.00416.93
8.0.80.0110.00416.87
8.0.70.0030.00616.68
8.0.60.0000.00816.70
8.0.50.0000.00716.84
8.0.30.0090.01217.12
8.0.20.0090.01117.40
8.0.10.0090.00017.01
8.0.00.0080.00916.84
7.4.330.0000.00615.00
7.4.320.0030.00316.45
7.4.300.0000.00616.50
7.4.290.0040.00416.52
7.4.280.0030.00316.30
7.4.270.0050.00216.38
7.4.260.0000.00716.52
7.4.250.0000.00716.48
7.4.240.0030.00316.44
7.4.230.0030.00316.40
7.4.220.0070.01016.45
7.4.210.0110.00616.47
7.4.200.0070.00016.31
7.4.190.0060.00316.59
7.4.160.0120.00416.45
7.4.150.0090.00917.40
7.4.140.0120.00617.86
7.4.130.0120.00516.46
7.4.120.0090.00916.46
7.4.110.0060.01116.54
7.4.100.0170.00016.50
7.4.90.0180.00016.61
7.4.80.0150.00419.39
7.4.70.0040.01616.39
7.4.60.0030.01516.55
7.4.50.0040.00416.39
7.4.40.0060.00922.77
7.4.30.0040.01116.56
7.4.00.0070.00714.73
7.3.330.0060.00013.03
7.3.320.0020.00213.04
7.3.310.0000.00715.95
7.3.300.0060.00016.28
7.3.290.0110.00416.21
7.3.280.0080.00716.19
7.3.270.0060.01217.40
7.3.260.0170.00716.70
7.3.250.0140.00416.21
7.3.240.0070.01016.37
7.3.230.0120.01116.39
7.3.210.0130.00416.43
7.3.200.0000.02019.39
7.3.190.0040.01216.15
7.3.180.0110.01116.28
7.3.170.0120.00916.27
7.3.160.0030.01216.37
7.3.120.0050.00914.98
7.3.110.0090.00714.79
7.3.100.0090.00614.73
7.3.90.0100.00214.71
7.3.80.0080.00414.91
7.3.70.0060.00414.66
7.3.60.0070.00714.75
7.3.50.0070.00714.63
7.3.40.0010.01314.83
7.3.30.0050.00514.71
7.3.20.0030.00916.53
7.3.10.0050.00816.57
7.3.00.0040.01016.42
7.2.330.0160.00316.42
7.2.320.0090.00916.40
7.2.310.0030.01416.47
7.2.300.0130.00316.34
7.2.290.0100.00616.50
7.2.250.0000.01814.87
7.2.240.0070.01114.92
7.2.230.0080.00314.85
7.2.220.0040.00814.98
7.2.210.0020.01214.81
7.2.200.0060.00814.92
7.2.190.0050.01114.95
7.2.180.0050.01014.83
7.2.170.0080.00614.94
7.2.160.0000.01515.18
7.2.150.0070.00717.00
7.2.140.0000.01416.91
7.2.130.0050.00816.79
7.2.120.0060.01016.65
7.2.110.0050.01016.75
7.2.100.0080.00616.69
7.2.90.0050.00816.73
7.2.80.0050.00816.90
7.2.70.0090.00516.79
7.2.60.0050.01016.54
7.2.50.0030.00716.69
7.2.40.0080.00416.67
7.2.30.0060.00917.00
7.2.20.0050.00616.60
7.2.10.0080.00716.57
7.2.00.0080.00517.61
7.1.330.0020.01415.66
7.1.320.0060.00515.75
7.1.310.0040.00615.69
7.1.300.0000.01215.82
7.1.290.0020.01215.64
7.1.280.0070.00915.79
7.1.270.0030.00915.66
7.1.260.0040.01115.67
7.1.250.0020.00915.62
7.1.240.0030.00915.73
7.1.230.0060.00915.76
7.1.220.0040.00815.31
7.1.210.0030.00715.74
7.1.200.0080.00415.58
7.1.190.0080.00315.70
7.1.180.0080.00815.71
7.1.170.0100.00315.39
7.1.160.0030.00815.80
7.1.150.0090.00315.91
7.1.140.0060.00615.63
7.1.130.0060.00615.80
7.1.120.0080.00515.30
7.1.110.0040.01115.45
7.1.100.0070.00416.70
7.1.90.0000.01015.46
7.1.80.0000.01215.73
7.1.70.0030.00716.38
7.1.60.0030.01117.77
7.1.50.0060.00616.33
7.1.40.0070.00315.75
7.1.30.0030.01015.25
7.1.20.0090.00315.68
7.1.10.0070.00315.62
7.1.00.0030.05019.11
7.0.330.0100.00015.11
7.0.320.0040.00715.49
7.0.310.0030.00615.55
7.0.300.0030.00715.25
7.0.290.0030.00715.23
7.0.280.0030.01015.48
7.0.270.0070.00415.25
7.0.260.0050.00315.36
7.0.250.0130.00015.39
7.0.240.0080.00315.34
7.0.230.0060.00315.11
7.0.220.0080.00315.07
7.0.210.0030.00715.25
7.0.200.0020.01016.08
7.0.190.0030.00615.28
7.0.180.0030.00715.09
7.0.170.0030.01015.08
7.0.160.0000.00915.14
7.0.150.0070.00315.09
7.0.140.0030.04118.54
7.0.130.0000.00915.17
7.0.120.0080.00315.31
7.0.110.0050.03217.61
7.0.100.0050.03917.57
7.0.90.0030.03817.48
7.0.80.0050.02517.68
7.0.70.0080.04517.61
7.0.60.0080.03817.68
7.0.50.0100.04817.75
7.0.40.0040.03416.45
7.0.30.0080.03816.62
7.0.20.0100.03716.40
7.0.10.0060.03616.61
7.0.00.0120.02516.48
5.6.380.0000.00814.02
5.6.370.0070.00314.29
5.6.360.0110.00014.35
5.6.350.0110.00414.44
5.6.340.0080.00413.98
5.6.330.0050.00514.41
5.6.320.0030.00714.37
5.6.310.0040.01114.26
5.6.300.0060.00914.16
5.6.290.0000.00914.34
5.6.280.0030.04017.59
5.6.270.0070.00314.13
5.6.260.0070.04317.52
5.6.250.0030.03517.44
5.6.240.0060.04417.36
5.6.230.0050.02517.41
5.6.220.0070.04317.20
5.6.210.0080.04317.32
5.6.200.0060.02917.36
5.6.190.0100.04017.51
5.6.180.0010.03217.35
5.6.170.0080.04417.52
5.6.160.0050.04217.42
5.6.150.0070.04217.42
5.6.140.0060.02817.32
5.6.130.0080.02517.38
5.6.120.0070.04217.33
5.6.110.0020.04317.38
5.6.100.0050.03917.36
5.6.90.0050.04117.44
5.6.80.0070.04017.06
5.6.70.0130.03716.89
5.6.60.0070.03917.15
5.6.50.0060.04316.99
5.6.40.0070.04217.06
5.6.30.0050.04217.04
5.6.20.0030.02317.01
5.6.10.0100.01816.93
5.6.00.0070.02016.81
5.5.380.0060.03914.31
5.5.370.0050.04014.21
5.5.360.0020.04614.25
5.5.350.0030.02714.32
5.5.340.0070.02314.54
5.5.330.0080.03314.41
5.5.320.0040.02514.50
5.5.310.0050.03914.45
5.5.300.0050.04014.57
5.5.290.0050.04314.50
5.5.280.0000.03514.58
5.5.270.0030.04414.33
5.5.260.0050.04014.49
5.5.250.0050.04314.35
5.5.240.0030.03914.06
5.5.230.0050.03614.19
5.5.220.0050.03914.19
5.5.210.0060.04014.20
5.5.200.0050.04014.08
5.5.190.0060.03414.30
5.5.180.0030.02314.06
5.5.170.0000.00910.90
5.5.160.0030.02414.26
5.5.150.0030.02814.07
5.5.140.0030.02314.19
5.5.130.0000.02314.24
5.5.120.0070.01614.19
5.5.110.0030.02214.17
5.5.100.0050.02214.09
5.5.90.0030.02014.13
5.5.80.0090.01814.16
5.5.70.0020.02714.03
5.5.60.0030.01814.21
5.5.50.0050.01714.06
5.5.40.0050.04314.15
5.5.30.0060.02014.01
5.5.20.0080.01814.32
5.5.10.0040.02014.18
5.5.00.0040.02414.06
5.4.450.0050.04415.16
5.4.440.0190.01815.19
5.4.430.0070.03815.26
5.4.420.0050.04315.24
5.4.410.0050.04415.19
5.4.400.0070.04015.01
5.4.390.0070.03914.91
5.4.380.0050.04114.96
5.4.370.0040.04014.93
5.4.360.0040.02514.99
5.4.350.0080.03514.99
5.4.340.0070.02615.05
5.4.330.0040.00410.90
5.4.320.0040.02014.91
5.4.310.0020.02414.94
5.4.300.0050.01915.13
5.4.290.0020.02414.91
5.4.280.0030.02515.01
5.4.270.0020.02914.92
5.4.260.0030.02015.01
5.4.250.0060.02015.01
5.4.240.0030.02015.01
5.4.230.0040.01814.93
5.4.220.0000.02515.01
5.4.210.0020.03814.96
5.4.200.0080.01614.92
5.4.190.0040.02014.91
5.4.180.0030.03414.94
5.4.170.0070.01815.00
5.4.160.0000.02114.99
5.4.150.0050.02514.93
5.4.140.0030.02413.56
5.4.130.0030.02513.58
5.4.120.0050.02413.69
5.4.110.0020.02013.65
5.4.100.0030.02113.57
5.4.90.0050.02213.65
5.4.80.0010.02113.66
5.4.70.0020.02313.58
5.4.60.0060.01613.68
5.4.50.0030.02113.70
5.4.40.0030.01913.79
5.4.30.0030.02013.63
5.4.20.0040.02113.50
5.4.10.0070.02013.64
5.4.00.0040.01813.25
5.3.290.0030.02012.73
5.3.280.0030.01812.78
5.3.270.0050.01912.64
5.3.260.0020.02412.70
5.3.250.0050.01812.66
5.3.240.0020.02212.79
5.3.230.0000.02412.67
5.3.220.0020.02212.70
5.3.210.0020.02212.78
5.3.200.0010.02412.63
5.3.190.0050.01812.68
5.3.180.0070.01812.65
5.3.170.0030.02112.74
5.3.160.0070.01712.76
5.3.150.0030.02112.70
5.3.140.0040.01812.67
5.3.130.0030.02112.73
5.3.120.0020.02412.68
5.3.110.0020.03612.73
5.3.100.0020.02512.36
5.3.90.0030.02112.43
5.3.80.0050.01912.50
5.3.70.0040.02012.40
5.3.60.0070.01712.34
5.3.50.0090.01712.34
5.3.40.0070.01712.45
5.3.30.0050.01712.41
5.3.20.0020.02412.27
5.3.10.0020.02112.24
5.3.00.0020.02912.21
5.2.170.0050.01511.39
5.2.160.0020.01711.39
5.2.150.0020.01711.39
5.2.140.0050.01711.39
5.2.130.0030.01511.39
5.2.120.0030.02311.39
5.2.110.0000.01611.39
5.2.100.0040.02011.39
5.2.90.0020.02011.39
5.2.80.0020.01811.39
5.2.70.0020.01811.39
5.2.60.0020.01811.39
5.2.50.0020.03311.39
5.2.40.0060.02811.39
5.2.30.0050.03111.39
5.2.20.0020.03311.39
5.2.10.0060.01311.39
5.2.00.0050.03011.39
5.1.60.0030.01411.39
5.1.50.0020.03111.39
5.1.40.0070.02511.39
5.1.30.0050.02911.39
5.1.20.0020.02711.39
5.1.10.0090.02311.39
5.1.00.0010.03111.39
5.0.50.0000.02911.39
5.0.40.0000.02211.39
5.0.30.0030.02811.39
5.0.20.0040.02211.39
5.0.10.0050.02011.39
5.0.00.0030.03111.39
4.4.90.0000.01211.39
4.4.80.0000.01011.39
4.4.70.0000.02011.39
4.4.60.0030.01911.39
4.4.50.0030.02011.39
4.4.40.0030.02811.39
4.4.30.0050.01411.39
4.4.20.0020.01811.39
4.4.10.0030.01311.39
4.4.00.0030.02711.39
4.3.110.0020.02011.39
4.3.100.0020.01911.39
4.3.90.0030.01211.39
4.3.80.0020.01511.39
4.3.70.0040.01511.39
4.3.60.0030.01711.39
4.3.50.0060.01511.39
4.3.40.0040.01811.39
4.3.30.0020.01411.39
4.3.20.0030.01811.39
4.3.10.0000.02211.39
4.3.00.0010.01011.39

preferences:
50.13 ms | 401 KiB | 5 Q