3v4l.org

run code in 300+ PHP versions simultaneously
<?php $blah = array('a' => ''); echo isset($blah('a')) +1;

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)
5.4.320.0270.03318.94
5.4.310.0230.06319.25
5.4.300.0130.04719.10
5.4.290.0200.05019.06
5.4.280.0270.04319.13
5.4.270.0200.03719.25
5.4.260.0300.06719.06
5.4.250.0330.06319.15
5.4.240.0230.04019.08
5.4.230.0200.06719.13
5.4.220.0230.04319.06
5.4.210.0200.04319.08
5.4.200.0230.07319.23
5.4.190.0170.04318.91
5.4.180.0170.03719.17
5.4.170.0200.04319.02
5.4.160.0200.05019.12
5.4.150.0270.06719.22
5.4.140.0230.06716.54
5.4.130.0270.05716.25
5.4.120.0170.07016.13
5.4.110.0200.05716.23
5.4.100.0200.06716.18
5.4.90.0170.06716.18
5.4.80.0200.05016.37
5.4.70.0130.04716.44
5.4.60.0270.07016.37
5.4.50.0230.04316.38
5.4.40.0130.07316.50
5.4.30.0230.06716.38
5.4.20.0100.05716.41
5.4.10.0230.03316.40
5.4.00.0270.06715.59
5.3.290.0170.04714.68
5.3.280.0170.04314.64
5.3.270.0200.03314.45
5.3.260.0130.04714.55
5.3.250.0170.05714.56
5.3.240.0270.03014.45
5.3.230.0270.04014.55
5.3.220.0170.07014.43
5.3.210.0230.07714.47
5.3.200.0170.04014.50
5.3.190.0170.07714.45
5.3.180.0270.06714.54
5.3.170.0200.07314.66
5.3.160.0170.05314.39
5.3.150.0230.07314.51
5.3.140.0230.07014.56
5.3.130.0230.07014.45
5.3.120.0200.05314.55
5.3.110.0170.05714.53
5.3.100.0230.07014.08
5.3.90.0300.06314.00
5.3.80.0170.07714.07
5.3.70.0270.04314.00
5.3.60.0200.05713.85
5.3.50.0170.04713.73
5.3.40.0200.04313.78
5.3.30.0270.05013.86
5.3.20.0200.07013.54
5.3.10.0330.06313.49
5.3.00.0270.06313.48
5.2.170.0200.06012.13
5.2.160.0170.04012.13
5.2.150.0130.03312.13
5.2.140.0200.02712.13
5.2.130.0170.05312.13
5.2.120.0100.03312.13
5.2.110.0200.04012.13
5.2.100.0230.05312.13
5.2.90.0170.06312.13
5.2.80.0230.05312.13
5.2.70.0200.05312.13
5.2.60.0170.03712.13
5.2.50.0070.03712.13
5.2.40.0200.02712.13
5.2.30.0170.05712.13
5.2.20.0170.03012.13
5.2.10.0170.03312.13
5.2.00.0170.02312.13
5.1.60.0170.02012.13
5.1.50.0130.02312.13
5.1.40.0100.03312.13
5.1.30.0170.04012.13
5.1.20.0170.03012.13
5.1.10.0200.04712.13
5.1.00.0100.03712.13
5.0.50.0070.03012.13
5.0.40.0130.04012.13
5.0.30.0100.05312.13
5.0.20.0030.04012.13
5.0.10.0100.02312.13
5.0.00.0100.04712.13
4.4.90.0130.03012.13
4.4.80.0100.02712.13
4.4.70.0100.03312.13
4.4.60.0170.02312.13
4.4.50.0070.03312.13
4.4.40.0070.05012.13
4.4.30.0070.03712.13
4.4.20.0070.03312.13
4.4.10.0100.03012.13
4.4.00.0100.04312.13
4.3.110.0100.02712.13
4.3.100.0130.01312.13
4.3.90.0100.02012.13
4.3.80.0100.03012.13
4.3.70.0070.03312.13
4.3.60.0100.03312.13
4.3.50.0070.03312.13
4.3.40.0130.04012.13
4.3.30.0100.02712.13
4.3.20.0100.02312.13
4.3.10.0030.02312.13
4.3.00.0030.02712.13

preferences:
146.17 ms | 1394 KiB | 7 Q