3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "10 kB"; $b = "5 kB"; $c = $a-$b; echo $c; var_dump($_REQUEST); ?>

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)
8.3.60.0090.00618.68
8.3.50.0120.00316.37
8.3.40.0070.00718.41
8.3.30.0110.00418.62
8.3.20.0090.00020.30
8.3.10.0040.00421.73
8.3.00.0040.00420.77
8.2.180.0070.00718.29
8.2.170.0090.00622.96
8.2.160.0160.00322.21
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0060.00320.47
8.2.120.0080.00026.35
8.2.110.0100.00022.08
8.2.100.0060.00617.87
8.2.90.0040.00418.20
8.2.80.0040.00417.97
8.2.70.0050.00317.93
8.2.60.0000.00918.09
8.2.50.0000.00818.10
8.2.40.0030.00622.31
8.2.30.0000.00820.94
8.2.20.0040.00418.11
8.2.10.0000.00818.21
8.2.00.0000.00718.02
8.1.280.0070.01125.92
8.1.270.0040.00423.70
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0070.00320.43
8.1.230.0070.00420.95
8.1.220.0080.00017.78
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.22
8.1.180.0050.00318.10
8.1.170.0040.00418.84
8.1.160.0030.00519.01
8.1.150.0000.00820.67
8.1.140.0000.00719.50
8.1.130.0030.00318.83
8.1.120.0070.00017.45
8.1.110.0070.00017.37
8.1.100.0040.00417.34
8.1.90.0040.00417.49
8.1.80.0000.00717.45
8.1.70.0000.00717.35
8.1.60.0080.00017.47
8.1.50.0050.00217.47
8.1.40.0040.00417.49
8.1.30.0040.00417.59
8.1.20.0030.00617.54
8.1.10.0060.00317.46
8.1.00.0040.00417.33
8.0.300.0040.00419.64
8.0.290.0000.00816.75
8.0.280.0070.00018.52
8.0.270.0000.00717.11
8.0.260.0030.00316.91
8.0.250.0040.00417.03
8.0.240.0040.00716.75
8.0.230.0040.00416.88
8.0.220.0030.00316.88
8.0.210.0000.00716.94
8.0.200.0000.00716.96
8.0.190.0050.00516.96
8.0.180.0000.00716.88
8.0.170.0070.00016.95
8.0.160.0030.00316.98
8.0.150.0040.00416.93
8.0.140.0050.00316.79
8.0.130.0030.00513.34
8.0.120.0070.00016.92
8.0.110.0040.00416.84
8.0.100.0000.00716.94
8.0.90.0000.00816.77
8.0.80.0160.00016.98
8.0.70.0040.00416.76
8.0.60.0000.00716.88
8.0.50.0000.00716.77
8.0.30.0100.00817.03
8.0.20.0080.01517.40
8.0.10.0000.00817.05
8.0.00.0060.01316.63
7.4.330.0050.00015.55
7.4.320.0030.00316.48
7.4.300.0040.00416.41
7.4.290.0100.00016.48
7.4.280.0040.00416.41
7.4.270.0070.00016.48
7.4.260.0030.00316.52
7.4.250.0030.00316.50
7.4.240.0030.00316.61
7.4.230.0030.00316.28
7.4.220.0060.01216.67
7.4.210.0140.00716.68
7.4.200.0000.00716.63
7.4.160.0070.00916.42
7.4.150.0070.01117.40
7.4.140.0120.00717.86
7.4.130.0160.01316.51
7.4.120.0110.01116.62
7.4.110.0140.00316.38
7.4.100.0100.00716.47
7.4.90.0090.00816.61
7.4.80.0110.00619.39
7.4.70.0110.00516.51
7.4.60.0060.01216.50
7.4.50.0040.01116.44
7.4.40.0030.01316.27
7.4.30.0080.00816.38
7.4.00.0140.00415.06
7.3.330.0040.00313.13
7.3.320.0000.00713.18
7.3.310.0040.00416.11
7.3.300.0000.00816.24
7.3.290.0070.01116.22
7.3.280.0060.00916.24
7.3.270.0130.00317.40
7.3.260.0070.01016.37
7.3.250.0110.00816.47
7.3.240.0080.00916.29
7.3.230.0000.01516.57
7.3.210.0060.00916.32
7.3.200.0120.00816.31
7.3.190.0100.00716.43
7.3.180.0030.01316.55
7.3.170.0030.01316.43
7.3.160.0090.00716.34
7.3.120.0000.01914.90
7.3.110.0070.01014.72
7.3.100.0040.01114.65
7.3.90.0040.00414.83
7.3.80.0060.00914.63
7.3.70.0000.01314.92
7.3.60.0100.00714.82
7.3.50.0090.00614.89
7.3.40.0030.00614.53
7.3.30.0070.01014.85
7.3.20.0060.00616.73
7.3.10.0070.00616.38
7.3.00.0030.00816.49
7.2.330.0130.00916.73
7.2.320.0060.01316.23
7.2.310.0130.00716.54
7.2.300.0100.01016.37
7.2.290.0040.01616.79
7.2.250.0040.01115.14
7.2.240.0030.01714.89
7.2.230.0030.00614.75
7.2.220.0100.00314.92
7.2.210.0030.00614.78
7.2.200.0040.00815.20
7.2.190.0070.00715.07
7.2.180.0060.00315.18
7.2.170.0060.01014.95
7.2.130.0090.00616.65
7.2.120.0020.01216.77
7.2.110.0090.00516.66
7.2.100.0030.00916.70
7.2.90.0030.01116.73
7.2.80.0120.00616.67
7.2.70.0070.00716.78
7.2.60.0090.00616.88
7.2.50.0090.00316.84
7.2.40.0060.00516.84
7.2.30.0080.00716.80
7.2.20.0030.01116.80
7.2.10.0030.01016.64
7.2.00.0080.00517.53
7.1.330.0040.00815.82
7.1.320.0070.00715.79
7.1.310.0070.00316.05
7.1.300.0110.00415.71
7.1.290.0070.00315.67
7.1.280.0000.01415.79
7.1.270.0060.00915.69
7.1.260.0110.00415.52
7.1.250.0050.00515.64
7.1.240.0030.00615.46
7.1.230.0090.00615.36
7.1.220.0070.00015.65
7.1.210.0030.01015.66
7.1.200.0060.00515.58
7.1.190.0040.00815.66
7.1.180.0040.00415.77
7.1.170.0030.01215.63
7.1.160.0080.00815.25
7.1.150.0030.00915.89
7.1.140.0040.01115.70
7.1.130.0040.00715.70
7.1.120.0100.00015.69
7.1.110.0060.00615.66
7.1.100.0040.00716.79
7.1.90.0060.00715.66
7.1.80.0120.00315.53
7.1.70.0020.00816.49
7.1.60.0190.01324.30
7.1.50.0250.01024.18
7.1.40.0240.00523.92
7.1.30.0160.01123.83
7.1.20.0190.01123.84
7.1.10.0120.00814.85
7.1.00.0180.00815.00
7.0.330.0040.00715.29
7.0.320.0030.01015.11
7.0.310.0060.00915.31
7.0.300.0030.01315.39
7.0.290.0060.00615.20
7.0.280.0040.01215.08
7.0.270.0040.01115.25
7.0.260.0030.01415.04
7.0.250.0040.00415.35
7.0.240.0040.01114.94
7.0.230.0030.01015.11
7.0.220.0030.01115.14
7.0.210.0030.00615.36
7.0.200.0120.01215.00
7.0.190.0110.00915.03
7.0.180.0150.00814.72
7.0.170.0220.00814.79
7.0.160.0130.00714.74
7.0.150.0130.00814.88
7.0.140.0190.00514.92
7.0.130.0140.00614.90
7.0.120.0120.01214.75
7.0.110.0240.00014.93
7.0.100.0160.00814.70
7.0.90.0080.00514.75
7.0.80.0090.00514.64
7.0.70.0260.00614.85
7.0.60.0150.00814.79
7.0.50.0230.00514.94
7.0.40.0050.01013.87
7.0.30.0120.01114.05
7.0.20.0160.00613.87
7.0.10.0100.01213.83
7.0.00.0170.00813.92
5.6.380.0050.00314.42

preferences:
39.03 ms | 401 KiB | 5 Q