3v4l.org

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

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)
5.4.340.3600.03319.12
5.4.320.4730.03718.93
5.4.310.4630.04019.11
5.4.300.3570.03319.21
5.4.290.3830.03719.15
5.4.280.3570.03019.16
5.4.270.3570.03319.06
5.4.260.3270.03019.12
5.4.250.3100.03719.13
5.4.240.3970.04719.22
5.4.230.3000.03319.21
5.4.220.3400.03719.21
5.4.210.3370.03319.14
5.4.200.3170.03719.16
5.4.190.3530.03719.21
5.4.180.3770.03719.14
5.4.170.4530.04319.11
5.4.160.4030.03719.09
5.4.150.3870.03719.13
5.4.140.3770.03716.45
5.4.130.3830.03316.44
5.4.120.3900.03316.38
5.4.110.4070.03716.55
5.4.100.4170.03016.55
5.4.90.4500.04016.52
5.4.80.4030.03716.34
5.4.70.3900.03316.21
5.4.60.3630.03716.42
5.4.50.3670.03016.61
5.4.40.4470.03016.42
5.4.30.4330.03316.41
5.4.20.3770.03016.52
5.4.10.3270.03016.46
5.4.00.4800.04015.93
5.3.290.4600.03714.62
5.3.280.3330.02714.69
5.3.270.3870.03714.63
5.3.260.3800.03314.70
5.3.250.4000.04014.63
5.3.240.3530.03714.40
5.3.230.3570.03314.52
5.3.220.3970.04014.49
5.3.210.3830.03714.51
5.3.200.4030.02714.58
5.3.190.4670.04014.49
5.3.180.4170.04014.52
5.3.170.3770.04014.52
5.3.160.3770.03014.50
5.3.150.4270.03014.50
5.3.140.4370.03714.50
5.3.130.4100.04314.34
5.3.120.3570.04014.49
5.3.110.4130.03714.52
5.3.100.3900.03714.00
5.3.90.3900.03313.95
5.3.80.3630.03314.01
5.3.70.3900.03013.95
5.3.60.3930.03313.94
5.3.50.3630.03013.73
5.3.40.0000.07713.78
5.3.30.0200.04014.00
5.3.20.4170.04313.78
5.3.10.4130.03713.60
5.3.00.4330.03713.60
5.2.170.3300.02711.30
5.2.160.3570.02711.15
5.2.150.0030.03711.15
5.2.140.0970.06011.11
5.2.130.3900.03011.09
5.2.120.3470.03310.92
5.2.110.3030.02310.95
5.2.100.3100.02710.95
5.2.90.3770.02710.99
5.2.80.3970.02711.04
5.2.70.2930.03311.18
5.2.60.3470.02310.98
5.2.50.3370.02010.85
5.2.40.2770.02710.98
5.2.30.2400.02710.82
5.2.20.2730.03710.98
5.2.10.2370.02710.86
5.2.00.2300.03010.61
5.1.60.2370.0209.95
5.1.50.2300.0279.96
5.1.40.0000.0479.88
5.1.30.0000.02710.34
5.1.20.0030.03710.43
5.1.10.0070.02710.06
5.1.00.0770.03710.13
5.0.50.1670.0208.50
5.0.40.1530.0208.38
5.0.30.1570.0338.37
5.0.20.1400.0238.25
5.0.10.1730.0178.23
5.0.00.1470.0278.29
4.4.90.1170.0176.63
4.4.80.1470.0176.63
4.4.70.1370.0206.63
4.4.60.1430.0176.63
4.4.50.1500.0136.63
4.4.40.1170.0236.63
4.4.30.1030.0136.63
4.4.20.0000.0406.63
4.4.10.1670.0106.63
4.4.00.1630.0276.63
4.3.110.1670.0136.63
4.3.100.1800.0136.63
4.3.90.1730.0176.63
4.3.80.1700.0276.63
4.3.70.1700.0176.63
4.3.60.1530.0106.63
4.3.50.1700.0176.63
4.3.40.1770.0276.63
4.3.30.0970.0176.63
4.3.20.0930.0236.63
4.3.10.0970.0236.63
4.3.00.0500.0276.63

preferences:
254.28 ms | 941 KiB | 9 Q