3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=null var_dump(isset($a));

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)
8.0.00.0080.01216.85
7.2.90.0860.00614.45
7.2.80.0660.00714.72
7.2.70.0800.00014.68
7.2.60.0710.00614.85
7.2.50.1280.00714.75
7.2.40.0700.00714.59
7.2.30.0820.00314.74
7.2.20.0220.00814.83
7.2.10.0070.01414.36
7.2.00.0140.01114.63
7.1.210.0470.00713.71
7.1.200.0720.00613.48
7.1.190.0860.00313.59
7.1.180.0800.00013.70
7.1.170.1280.00313.34
7.1.160.0860.00313.58
7.1.150.0790.00713.44
7.1.140.0130.00313.68
7.1.130.1110.00313.49
7.1.120.0670.00713.63
7.1.110.0130.00013.70
7.1.100.0090.00913.82
7.1.90.0080.01113.59
7.1.80.1680.01313.50
7.1.70.0780.00013.67
7.1.60.1130.00332.00
7.1.50.0330.00331.88
7.1.40.0340.00331.72
7.1.30.0390.00331.71
7.1.20.0250.00631.68
7.1.10.0190.00813.80
7.1.00.0860.00913.57
7.0.310.0710.01013.24
7.0.300.0960.00013.41
7.0.290.0720.00313.25
7.0.280.0780.01013.07
7.0.270.0880.00313.25
7.0.260.0330.00313.27
7.0.250.0070.01013.34
7.0.240.0120.00813.21
7.0.230.0040.01213.07
7.0.220.1370.01013.25
7.0.210.0140.01413.51
7.0.200.0080.01013.29
7.0.190.0740.01213.28
7.0.180.0160.00013.20
7.0.170.0920.00313.34
7.0.160.0890.00313.31
7.0.150.0130.00213.19
7.0.140.1110.00613.49
7.0.130.0670.01013.48
7.0.120.1040.00613.29
7.0.110.0090.00913.47
7.0.100.0120.00413.56
7.0.90.0750.00613.10
7.0.80.0060.01213.29
7.0.70.1330.01213.32
7.0.60.1350.00313.28
7.0.50.0190.00613.31
7.0.40.0100.00513.50
7.0.30.0470.00613.38
7.0.20.0210.00413.31
7.0.10.0990.01313.35
7.0.00.1020.00613.54
5.6.300.0120.00514.07
5.6.290.0080.00513.87
5.6.280.0110.00513.88
5.6.270.0030.01013.79
5.6.260.0060.00613.82
5.6.250.0050.01014.16
5.6.240.0040.01113.79
5.6.230.0150.00314.23
5.6.220.0000.01613.98
5.6.210.0080.00814.07
5.6.200.0000.01414.14
5.6.190.0080.00413.86
5.6.180.0130.00313.95
5.6.170.0060.01013.71
5.6.160.0090.00514.14
5.6.150.0090.00814.43
5.6.140.0070.00713.97
5.6.130.0040.01214.31
5.6.120.0030.00913.82
5.6.110.0090.00414.19
5.6.100.0120.00214.04
5.6.90.0000.01214.21
5.6.80.0060.00613.80
5.6.70.0040.00814.03
5.6.60.0070.00713.98
5.6.50.0100.00313.82
5.6.40.0030.00913.85
5.6.30.0030.01114.13
5.6.20.0120.00714.00
5.6.10.0040.00813.96
5.6.00.0110.00313.84

preferences:
144.5 ms | 1386 KiB | 7 Q