3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a() { echo "called\n"; return 'aaa'; } class A {} isset(strlen($a)); isset($a); isset($a[0]); isset(A::$x); isset(A::Const1); isset($a->found);

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)
5.4.350.3900.04019.00
5.4.340.4530.04019.21
5.4.320.0130.05018.93
5.4.310.0070.05019.19
5.4.300.4200.03319.22
5.4.290.4700.04019.18
5.4.280.3900.03718.93
5.4.270.4070.03719.18
5.4.260.3900.04319.04
5.4.250.4130.03319.14
5.4.240.4400.03319.15
5.4.230.3800.04318.95
5.4.220.0930.05319.05
5.4.210.0070.06019.18
5.4.200.0800.03719.09
5.4.190.3600.03019.14
5.4.180.3830.02718.95
5.4.170.3670.04018.91
5.4.160.3730.03319.19
5.4.150.3470.04718.91
5.4.140.3670.03716.55
5.4.130.2870.04016.55
5.4.120.4000.04016.45
5.4.110.3400.03016.60
5.4.100.3830.02716.61
5.4.90.3700.03016.27
5.4.80.3700.03316.35
5.4.70.3730.03716.67
5.4.60.4100.03716.43
5.4.50.3900.03016.61
5.4.40.4270.03316.58
5.4.30.4970.03016.54
5.4.20.5030.03716.39
5.4.10.3870.03716.48
5.4.00.4730.02715.83
5.3.290.0000.05314.68
5.3.280.3970.03314.59
5.3.270.3700.04014.64
5.3.260.3600.03314.67
5.3.250.3430.04014.63
5.3.240.3030.03714.63
5.3.230.3900.04714.59
5.3.220.3730.03314.59
5.3.210.3370.03314.59
5.3.200.4130.04714.71
5.3.190.4130.03314.63
5.3.180.3600.03314.45
5.3.170.3900.03714.56
5.3.160.4730.03714.71
5.3.150.4030.03014.71
5.3.140.4000.04014.60
5.3.130.5530.03314.47
5.3.120.4030.04014.55
5.3.110.3900.04014.61
5.3.100.3930.03014.03
5.3.90.4570.04014.04
5.3.80.4600.03314.18
5.3.70.4800.03714.06
5.3.60.4030.03314.00
5.3.50.4230.03014.10
5.3.40.3700.03314.00
5.3.30.4030.04013.93
5.3.20.5670.03713.57
5.3.10.3870.03713.69
5.3.00.4700.04713.64
5.2.170.3430.02711.14
5.2.160.2970.03311.10
5.2.150.3370.03011.30
5.2.140.4600.02311.05
5.2.130.3370.02311.16
5.2.120.3930.03011.05
5.2.110.3370.03011.26
5.2.100.3330.02711.17
5.2.90.3400.03310.99
5.2.80.3200.03311.01
5.2.70.3100.02711.10
5.2.60.3230.02711.02
5.2.50.3270.02711.16
5.2.40.2930.03010.98
5.2.30.2870.03010.87
5.2.20.3100.03011.00
5.2.10.3230.02710.86
5.2.00.4000.02310.86
5.1.60.3230.02010.06
5.1.50.3100.0279.97
5.1.40.3270.02310.04
5.1.30.2830.03010.37
5.1.20.2830.02310.34
5.1.10.2330.02710.08
5.1.00.3070.02710.09
5.0.50.0970.0138.61
5.0.40.1570.0178.33
5.0.30.1800.0308.13
5.0.20.1770.0208.21
5.0.10.1500.0178.07
5.0.00.1700.0308.15
4.4.90.1470.0135.94
4.4.80.1430.0205.87
4.4.70.1770.0175.90
4.4.60.1770.0175.79
4.4.50.1870.0105.84
4.4.40.1400.0275.79
4.4.30.1500.0175.79
4.4.20.1570.0175.96
4.4.10.1800.0135.88
4.4.00.1700.0305.87
4.3.110.1870.0135.70
4.3.100.1730.0205.83
4.3.90.1770.0175.79
4.3.80.1700.0275.74
4.3.70.1170.0175.80
4.3.60.1800.0175.70
4.3.50.1770.0205.74
4.3.40.1600.0275.69
4.3.30.1000.0235.41
4.3.20.0800.0175.41
4.3.10.0970.0205.41
4.3.00.1030.0205.41

preferences:
143.97 ms | 1394 KiB | 7 Q