3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode(array('a"', array())); array("a", array())

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)
5.4.340.0100.04411.98
5.4.320.0060.04312.46
5.4.310.0090.04812.46
5.4.300.0090.03912.47
5.4.290.0090.03912.46
5.4.280.0090.05112.36
5.4.270.0050.04212.36
5.4.260.0090.03812.36
5.4.250.0090.04012.36
5.4.240.0060.03812.36
5.4.230.0100.03612.35
5.4.220.0100.03312.35
5.4.210.0080.04912.35
5.4.200.0090.05712.35
5.4.190.0100.03712.34
5.4.180.0090.04712.35
5.4.170.0070.05112.36
5.4.160.0070.04812.36
5.4.150.0070.03712.35
5.4.140.0090.03912.04
5.4.130.0090.04812.02
5.4.120.0090.05111.98
5.4.110.0060.04011.98
5.4.100.0110.03611.98
5.4.90.0110.03811.98
5.4.80.0130.03811.98
5.4.70.0080.03311.97
5.4.60.0040.04011.97
5.4.50.0070.03911.97
5.4.40.0060.04011.97
5.4.30.0050.03611.96
5.4.20.0030.03911.96
5.4.10.0070.04411.96
5.4.00.0120.04011.45
5.3.290.0130.03812.80
5.3.280.0070.04312.70
5.3.270.0060.05012.72
5.3.260.0080.04612.72
5.3.250.0100.04412.72
5.3.240.0070.04412.72
5.3.230.0060.04512.71
5.3.220.0080.04212.68
5.3.210.0060.04612.68
5.3.200.0060.03912.68
5.3.190.0070.04212.68
5.3.180.0110.03612.67
5.3.170.0040.04512.66
5.3.160.0090.03512.67
5.3.150.0050.03912.67
5.3.140.0060.03712.66
5.3.130.0050.04412.66
5.3.120.0110.03612.66
5.3.110.0050.04012.66
5.3.100.0070.04012.12
5.3.90.0070.04112.08
5.3.80.0160.05212.08
5.3.70.0100.05212.07
5.3.60.0060.04112.07
5.3.50.0080.03712.00
5.3.40.0130.04912.00
5.3.30.0060.04811.95
5.3.20.0070.03611.72
5.3.10.0080.04311.70
5.3.00.0140.05811.68
5.2.170.0050.0339.18
5.2.160.0090.0339.18
5.2.150.0060.0409.18
5.2.140.0080.0419.18
5.2.130.0080.0409.14
5.2.120.0080.0269.14
5.2.110.0040.0309.14
5.2.100.0090.0349.14
5.2.90.0110.0349.14
5.2.80.0120.0319.14
5.2.70.0060.0319.14
5.2.60.0060.0329.09
5.2.50.0060.0369.06
5.2.40.0070.0329.04
5.2.30.0050.0359.01
5.2.20.0110.0489.00
5.2.10.0100.0508.93
5.2.00.0070.0298.79
5.1.60.0060.0348.07
5.1.50.0080.0318.06
5.1.40.0040.0348.05
5.1.30.0050.0298.39
5.1.20.0060.0338.42
5.1.10.0050.0268.14
5.1.00.0040.0258.14
5.0.50.0040.0206.62
5.0.40.0030.0196.48
5.0.30.0040.0316.29
5.0.20.0040.0186.26
5.0.10.0080.0156.24
5.0.00.0070.0266.23
4.4.90.0040.0144.78
4.4.80.0020.0154.76
4.4.70.0060.0124.75
4.4.60.0020.0164.75
4.4.50.0060.0174.77
4.4.40.0030.0254.70
4.4.30.0030.0154.76
4.4.20.0040.0164.84
4.4.10.0030.0164.85
4.4.00.0030.0254.76
4.3.110.0030.0164.67
4.3.100.0020.0164.66
4.3.90.0030.0164.63
4.3.80.0010.0264.59
4.3.70.0010.0194.63
4.3.60.0020.0184.63
4.3.50.0020.0164.63
4.3.40.0040.0234.54
4.3.30.0000.0183.28
4.3.20.0020.0163.26
4.3.10.0020.0153.21
4.3.00.0070.0236.77

preferences:
136.55 ms | 1394 KiB | 7 Q