3v4l.org

run code in 300+ PHP versions simultaneously
<?php $o = new stdClass; var_dump(empty($o)); var_dump(empty((array) $o);

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)
5.4.320.0080.03612.49
5.4.310.0060.04912.50
5.4.300.0050.04112.49
5.4.290.0060.04112.49
5.4.280.0070.03412.39
5.4.270.0080.03812.39
5.4.260.0090.03412.39
5.4.250.0070.03912.39
5.4.240.0100.03912.39
5.4.230.0070.04512.38
5.4.220.0060.04612.38
5.4.210.0060.04112.38
5.4.200.0060.04212.38
5.4.190.0070.03712.38
5.4.180.0070.03812.38
5.4.170.0070.03512.38
5.4.160.0120.04212.38
5.4.150.0080.03312.38
5.4.140.0090.04212.07
5.4.130.0050.03712.05
5.4.120.0080.03412.02
5.4.110.0080.03512.01
5.4.100.0080.03512.01
5.4.90.0050.03712.01
5.4.80.0060.03612.01
5.4.70.0060.03412.01
5.4.60.0090.03212.00
5.4.50.0060.03712.01
5.4.40.0050.03512.00
5.4.30.0070.04011.99
5.4.20.0050.03511.98
5.4.10.0040.04211.99
5.4.00.0070.03911.48
5.3.290.0070.04212.80
5.3.280.0060.04412.71
5.3.270.0080.04712.72
5.3.260.0120.03612.72
5.3.250.0050.04112.72
5.3.240.0100.03612.71
5.3.230.0090.04312.71
5.3.220.0120.03612.68
5.3.210.0090.03812.68
5.3.200.0090.03412.68
5.3.190.0060.03812.68
5.3.180.0060.03612.67
5.3.170.0090.03312.67
5.3.160.0070.04012.68
5.3.150.0110.04612.67
5.3.140.0060.03812.66
5.3.130.0060.03912.66
5.3.120.0060.03912.66
5.3.110.0050.04312.66
5.3.100.0100.04112.12
5.3.90.0090.04112.08
5.3.80.0070.03712.07
5.3.70.0070.03712.07
5.3.60.0090.03612.06
5.3.50.0080.03512.00
5.3.40.0070.03812.00
5.3.30.0080.03611.95
5.3.20.0070.03811.73
5.3.10.0060.03911.70
5.3.00.0090.04411.68
5.2.170.0050.0329.18
5.2.160.0060.0349.18
5.2.150.0050.0319.18
5.2.140.0040.0329.18
5.2.130.0050.0329.14
5.2.120.0110.0289.14
5.2.110.0040.0349.14
5.2.100.0030.0379.14
5.2.90.0060.0399.14
5.2.80.0060.0329.14
5.2.70.0040.0389.14
5.2.60.0030.0399.09
5.2.50.0070.0319.06
5.2.40.0050.0329.04
5.2.30.0020.0359.02
5.2.20.0040.0379.00
5.2.10.0040.0328.93
5.2.00.0030.0308.78
5.1.60.0040.0248.07
5.1.50.0110.0228.07
5.1.40.0070.0318.05
5.1.30.0040.0358.40
5.1.20.0040.0318.42
5.1.10.0040.0268.14
5.1.00.0070.0238.15
5.0.50.0020.0216.63
5.0.40.0030.0256.48
5.0.30.0030.0336.29
5.0.20.0050.0276.27
5.0.10.0040.0226.24
5.0.00.0060.0356.23
4.4.90.0040.0174.78
4.4.80.0040.0194.75
4.4.70.0040.0214.76
4.4.60.0050.0144.75
4.4.50.0030.0154.77
4.4.40.0050.0284.71
4.4.30.0000.0194.76
4.4.20.0050.0174.84
4.4.10.0030.0234.85
4.4.00.0060.0394.76
4.3.110.0060.0134.67
4.3.100.0020.0184.66
4.3.90.0030.0144.63
4.3.80.0030.0304.59
4.3.70.0030.0214.63
4.3.60.0020.0204.63
4.3.50.0040.0184.63
4.3.40.0050.0244.54
4.3.30.0050.0163.29
4.3.20.0020.0203.27
4.3.10.0020.0163.21
4.3.00.0100.01014.45

preferences:
140.31 ms | 1394 KiB | 7 Q