3v4l.org

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

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)
8.3.60.0110.00318.43
8.3.50.0040.01116.18
8.3.40.0140.00018.85
8.3.30.0060.00918.73
8.3.20.0060.00320.21
8.3.10.0080.00021.79
8.3.00.0000.00920.77
8.2.180.0120.00318.29
8.2.170.0150.00622.96
8.2.160.0160.00322.16
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00022.25
8.2.120.0070.00026.35
8.2.110.0060.00320.52
8.2.100.0000.01117.97
8.2.90.0000.00719.25
8.2.80.0000.00917.97
8.2.70.0000.00917.63
8.2.60.0050.00317.91
8.2.50.0040.00418.10
8.2.40.0000.00822.26
8.2.30.0030.00521.14
8.2.20.0000.00818.05
8.2.10.0030.00518.15
8.2.00.0020.00517.98
8.1.280.0090.00625.92
8.1.270.0060.00323.91
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0060.00322.68
8.1.230.0110.00019.21
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.22
8.1.190.0000.00816.98
8.1.180.0040.00418.10
8.1.170.0060.00318.43
8.1.160.0040.00419.08
8.1.150.0040.00420.61
8.1.140.0050.00219.37
8.1.130.0000.00718.72
8.1.120.0000.00717.36
8.1.110.0040.00417.34
8.1.100.0030.00517.36
8.1.90.0050.00217.24
8.1.80.0000.00717.27
8.1.70.0000.00817.23
8.1.60.0040.00417.49
8.1.50.0000.00817.43
8.1.40.0070.00017.44
8.1.30.0040.00417.46
8.1.20.0060.00317.58
8.1.10.0070.00017.59
8.1.00.0040.00417.44
8.0.300.0000.00718.77
8.0.290.0050.00316.75
8.0.280.0070.00018.43
8.0.270.0000.00817.25
8.0.260.0000.00616.87
8.0.250.0030.00316.96
8.0.240.0040.00716.82
8.0.230.0040.00416.87
8.0.220.0000.00716.77
8.0.210.0030.00316.84
8.0.200.0000.00716.89
8.0.190.0050.00316.85
8.0.180.0050.00216.89
8.0.170.0040.00416.81
8.0.160.0040.00416.95
8.0.150.0030.00316.71
8.0.140.0040.00416.83
8.0.130.0030.00513.29
8.0.120.0040.00416.82
8.0.110.0000.00816.83
8.0.100.0040.00416.72
8.0.90.0000.00716.91
8.0.80.0090.00616.86
8.0.70.0040.00416.87
8.0.60.0040.00416.79
8.0.50.0000.00716.91
8.0.30.0040.01417.07
8.0.20.0130.01117.40
8.0.10.0030.00316.78
8.0.00.0100.00716.64
7.4.330.0000.00615.55
7.4.320.0000.00616.54
7.4.300.0030.00316.55
7.4.290.0030.00616.40
7.4.280.0000.00716.51
7.4.270.0000.00716.51
7.4.260.0030.00316.50
7.4.250.0050.00316.40
7.4.240.0070.00016.38
7.4.230.0070.00016.27
7.4.220.0150.00416.55
7.4.210.0100.01016.46
7.4.200.0000.00816.63
7.4.160.0110.00516.36
7.4.150.0120.00617.40
7.4.140.0090.01117.86
7.4.130.0140.01016.41
7.4.120.0100.01116.38
7.4.110.0070.01016.46
7.4.100.0120.00616.33
7.4.90.0100.01316.51
7.4.80.0090.01519.39
7.4.70.0060.01016.39
7.4.60.0110.00716.50
7.4.50.0070.00716.56
7.4.40.0060.01016.43
7.4.30.0080.00816.58
7.4.00.0060.00914.81
7.3.330.0000.00613.00
7.3.320.0060.00013.09
7.3.310.0070.00016.24
7.3.300.0030.00316.26
7.3.290.0030.01216.23
7.3.280.0080.00716.26
7.3.270.0110.00617.40
7.3.260.0080.01216.25
7.3.250.0080.00916.34
7.3.240.0080.01116.23
7.3.230.0120.00616.29
7.3.210.0100.00616.29
7.3.200.0070.01116.32
7.3.190.0040.01216.16
7.3.180.0130.00316.33
7.3.170.0030.01216.34
7.3.160.0090.00616.27
7.2.330.0130.00316.37
7.2.320.0040.01516.42
7.2.310.0070.01016.58
7.2.300.0030.01316.70
7.2.290.0150.00616.18
7.2.60.0070.00716.79
7.2.00.0210.01019.06
7.1.200.0040.00715.62
7.1.100.0040.00817.84
7.1.70.0000.01016.81
7.1.60.0670.01333.05
7.1.50.0470.00732.77
7.1.40.0330.01032.43
7.1.30.0670.00332.28
7.1.20.0200.01032.58
7.1.10.0070.00314.52
7.1.00.0330.01014.88
7.0.200.0330.00714.92
7.0.190.0430.00014.52
7.0.180.0330.00314.21
7.0.170.0300.01314.28
7.0.160.0300.00714.33
7.0.150.0030.01014.24
7.0.140.0300.01014.57
7.0.130.0700.00714.60
7.0.120.0100.00714.80
7.0.110.0600.00714.68
7.0.100.0330.01014.28
7.0.90.0300.01014.42
7.0.80.0300.01014.49
7.0.70.0300.01714.31
7.0.60.0270.00314.34
7.0.50.0430.01314.58
7.0.40.0070.00714.58
7.0.30.0300.01014.57
7.0.20.0430.00314.60
7.0.10.0330.01014.42
7.0.00.0330.01014.50

preferences:
44.57 ms | 400 KiB | 5 Q