3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a' => 'A'); print_r isset($arr['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)
5.4.310.4330.03719.11
5.4.300.4730.03319.09
5.4.290.3900.03719.23
5.4.280.3870.04018.93
5.4.270.3900.03718.99
5.4.260.3630.03719.10
5.4.250.3800.02319.04
5.4.240.3630.03319.22
5.4.230.3600.03718.95
5.4.220.3830.03718.96
5.4.210.3570.04018.98
5.4.200.3870.03319.23
5.4.190.3730.04319.23
5.4.180.3830.03319.12
5.4.170.3300.03319.07
5.4.160.3870.03719.13
5.4.150.3600.04318.91
5.4.140.4030.03016.42
5.4.130.3630.03716.34
5.4.120.3770.03716.48
5.4.110.3330.04016.25
5.4.100.3570.04316.47
5.4.90.3530.03716.26
5.4.80.3530.04316.30
5.4.70.3870.03016.45
5.4.60.3800.04016.41
5.4.50.4000.03316.41
5.4.40.3870.04016.51
5.4.30.3930.03316.42
5.4.20.3830.03716.42
5.4.10.3700.03316.52
5.4.00.3600.04015.93
5.3.290.3670.03314.56
5.3.280.3870.03714.56
5.3.270.3870.04014.39
5.3.260.4230.04314.54
5.3.250.3600.03714.57
5.3.240.3630.04314.54
5.3.230.3670.03014.55
5.3.220.3870.03714.49
5.3.210.3700.04014.65
5.3.200.3830.04314.49
5.3.190.4100.05014.66
5.3.180.3870.03714.46
5.3.170.3830.03314.49
5.3.160.3730.03314.46
5.3.150.3830.04314.36
5.3.140.3700.03014.52
5.3.130.3770.04014.48
5.3.120.3830.03714.64
5.3.110.3870.04314.49
5.3.100.3600.03713.97
5.3.90.3870.03313.95
5.3.80.4030.04014.03
5.3.70.3270.03313.95
5.3.60.3770.03713.84
5.3.50.1470.03714.04
5.3.40.0100.06713.94
5.3.30.4000.03313.83
5.3.20.3700.02713.63
5.3.10.3600.03713.59
5.3.00.3700.03313.56
5.2.170.0000.04311.13
5.2.160.0030.05311.13
5.2.150.3270.03011.05
5.2.140.3130.02711.12
5.2.130.3030.02711.26
5.2.120.3000.03011.04
5.2.110.3030.02711.06
5.2.100.2900.03011.09
5.2.90.3130.03011.07
5.2.80.3230.02710.91
5.2.70.2870.03310.91
5.2.60.3000.02710.92
5.2.50.2770.02710.95
5.2.40.2430.02010.97
5.2.30.2500.02310.90
5.2.20.2430.02310.85
5.2.10.2770.03010.82
5.2.00.2370.03010.70
5.1.60.2300.0279.99
5.1.50.0930.0279.83
5.1.40.0070.0409.96
5.1.30.0070.05310.26
5.1.20.0000.04310.36
5.1.10.0900.04010.06
5.1.00.2930.02310.21
5.0.50.1670.0208.70
5.0.40.1730.0238.45
5.0.30.1670.0278.17
5.0.20.1300.0238.19
5.0.10.1270.0208.13
5.0.00.1400.0338.06
4.4.90.1300.0175.86
4.4.80.1430.0175.86
4.4.70.1200.0135.86
4.4.60.1130.0175.86
4.4.50.1330.0135.90
4.4.40.1170.0235.86
4.4.30.0000.0175.86
4.4.20.0030.0205.86
4.4.10.1570.0105.86
4.4.00.1700.0235.86
4.3.110.1670.0175.86
4.3.100.1200.0175.86
4.3.90.1200.0135.86
4.3.80.1170.0235.86
4.3.70.1430.0135.86
4.3.60.1400.0205.86
4.3.50.1430.0135.86
4.3.40.1170.0275.86
4.3.30.0630.0175.86
4.3.20.0830.0135.86
4.3.10.0730.0135.86
4.3.00.0970.0175.86

preferences:
146.53 ms | 1394 KiB | 7 Q