3v4l.org

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

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)
5.4.350.0110.06412.01
5.4.340.0150.06512.01
5.4.320.0100.05012.50
5.4.310.0080.04912.49
5.4.300.0080.04812.50
5.4.290.0110.05112.50
5.4.280.0100.04612.39
5.4.270.0060.05212.39
5.4.260.0080.05112.39
5.4.250.0090.05412.39
5.4.240.0080.04912.39
5.4.230.0080.04012.38
5.4.220.0070.03812.38
5.4.210.0120.06512.38
5.4.200.0060.06812.38
5.4.190.0150.06312.38
5.4.180.0060.05512.38
5.4.170.0090.05612.38
5.4.160.0130.06212.38
5.4.150.0140.04312.38
5.4.140.0120.06512.07
5.4.130.0100.04512.05
5.4.120.0160.04212.02
5.4.110.0100.05112.01
5.4.100.0080.05012.02
5.4.90.0050.05412.01
5.4.80.0110.05012.02
5.4.70.0100.05012.01
5.4.60.0080.04812.01
5.4.50.0060.05412.01
5.4.40.0120.04812.00
5.4.30.0090.04811.99
5.4.20.0120.04911.99
5.4.10.0090.05111.99
5.4.00.0090.05211.48
5.3.290.0110.05512.80
5.3.280.0080.05412.71
5.3.270.0070.05812.73
5.3.260.0080.05512.72
5.3.250.0080.05412.72
5.3.240.0080.05512.71
5.3.230.0070.05412.71
5.3.220.0110.04912.68
5.3.210.0110.05812.68
5.3.200.0150.04612.68
5.3.190.0110.04912.68
5.3.180.0110.04912.68
5.3.170.0080.05212.67
5.3.160.0070.05312.67
5.3.150.0090.05312.67
5.3.140.0150.05112.66
5.3.130.0090.07412.66
5.3.120.0060.04512.66
5.3.110.0070.04612.66
5.3.100.0080.04112.12
5.3.90.0080.04912.08
5.3.80.0090.04512.08
5.3.70.0080.04512.08
5.3.60.0070.05312.07
5.3.50.0110.06812.00
5.3.40.0110.05412.00
5.3.30.0060.04511.95
5.3.20.0070.04411.73
5.3.10.0040.05211.70
5.3.00.0070.04911.68
5.2.170.0050.0409.18
5.2.160.0060.0419.18
5.2.150.0090.0439.18
5.2.140.0070.0349.18
5.2.130.0060.0359.14
5.2.120.0070.0329.13
5.2.110.0110.0319.15
5.2.100.0090.0329.14
5.2.90.0040.0399.14
5.2.80.0070.0389.14
5.2.70.0060.0399.14
5.2.60.0090.0349.09
5.2.50.0070.0399.05
5.2.40.0050.0349.03
5.2.30.0060.0379.01
5.2.20.0050.0359.01
5.2.10.0040.0368.92
5.2.00.0050.0308.78
5.1.60.0050.0248.06
5.1.50.0080.0298.06
5.1.40.0050.0318.05
5.1.30.0060.0328.40
5.1.20.0060.0348.42
5.1.10.0080.0268.14
5.1.00.0050.0318.14
5.0.50.0030.0246.63
5.0.40.0040.0246.48
5.0.30.0040.0356.29
5.0.20.0070.0236.27
5.0.10.0060.0266.24
5.0.00.0040.0396.23
4.4.90.0030.0224.78
4.4.80.0030.0224.75
4.4.70.0020.0224.75
4.4.60.0030.0194.75
4.4.50.0030.0214.77
4.4.40.0030.0274.71
4.4.30.0020.0204.75
4.4.20.0090.0224.85
4.4.10.0030.0224.85
4.4.00.0050.0454.76
4.3.110.0030.0214.67
4.3.100.0050.0234.66
4.3.90.0040.0184.64
4.3.80.0050.0374.59
4.3.70.0040.0184.63
4.3.60.0030.0174.63
4.3.50.0020.0194.63
4.3.40.0040.0304.54
4.3.30.0030.0203.29
4.3.20.0030.0213.27
4.3.10.0030.0173.21
4.3.00.0100.0307.10

preferences:
145.02 ms | 1394 KiB | 7 Q