3v4l.org

run code in 300+ PHP versions simultaneously
<?php class String extends \SplString { protected $encoding; public function __construct($default, $strict = true, $encoding = null) { $this->encoding = $encoding; parent::__construct($default, $strict); } }

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)
5.4.320.0030.04012.50
5.4.310.0040.04112.50
5.4.300.0100.04412.50
5.4.290.0090.04112.50
5.4.280.0080.03512.39
5.4.270.0090.04212.39
5.4.260.0160.03912.40
5.4.250.0110.03712.39
5.4.240.0080.03612.39
5.4.230.0060.04212.39
5.4.220.0120.04312.39
5.4.210.0120.03812.39
5.4.200.0160.04512.39
5.4.190.0150.05212.38
5.4.180.0100.03712.38
5.4.170.0090.03412.40
5.4.160.0070.03512.39
5.4.150.0070.03512.38
5.4.140.0060.03712.07
5.4.130.0090.03212.06
5.4.120.0110.03712.02
5.4.110.0060.04612.01
5.4.100.0090.03212.01
5.4.90.0050.03912.01
5.4.80.0050.03912.01
5.4.70.0100.04112.00
5.4.60.0120.04212.01
5.4.50.0100.03712.01
5.4.40.0070.04012.00
5.4.30.0090.03411.99
5.4.20.0110.03412.00
5.4.10.0060.03611.99
5.4.00.0090.03511.48
5.3.290.0080.03812.80
5.3.280.0060.03912.71
5.3.270.0090.05312.72
5.3.260.0070.03912.72
5.3.250.0050.04212.72
5.3.240.0090.04012.72
5.3.230.0090.03912.71
5.3.220.0080.03912.68
5.3.210.0050.05012.68
5.3.200.0060.03812.68
5.3.190.0120.04312.68
5.3.180.0090.04412.67
5.3.170.0100.03812.67
5.3.160.0130.03812.67
5.3.150.0070.03712.67
5.3.140.0050.03912.66
5.3.130.0090.04112.66
5.3.120.0120.03612.65
5.3.110.0070.03812.66
5.3.100.0060.03912.13
5.3.90.0080.04012.11
5.3.80.0050.03812.11
5.3.70.0070.03712.11
5.3.60.0100.04012.09
5.3.50.0110.04412.04
5.3.40.0090.04012.04
5.3.30.0080.03712.00
5.3.20.0070.03711.78
5.3.10.0090.03811.74
5.3.00.0070.03511.73
5.2.170.0040.0319.23
5.2.160.0060.0289.22
5.2.150.0050.0379.22
5.2.140.0120.0339.22
5.2.130.0090.0289.17
5.2.120.0050.0289.18
5.2.110.0060.0329.19
5.2.100.0060.0299.18
5.2.90.0050.0299.18
5.2.80.0070.0309.18
5.2.70.0050.0329.18
5.2.60.0110.0309.13
5.2.50.0110.0369.09
5.2.40.0060.0389.07
5.2.30.0070.0419.05
5.2.20.0080.0369.04
5.2.10.0100.0328.95
5.2.00.0060.0338.80
5.1.60.0080.0368.08
5.1.50.0110.0268.08
5.1.40.0040.0278.07
5.1.30.0060.0298.42
5.1.20.0040.0338.44
5.1.10.0090.0268.16
5.1.00.0080.0248.16
5.0.50.0060.0286.64
5.0.40.0040.0196.50
5.0.30.0060.0296.32
5.0.20.0050.0226.28
5.0.10.0040.0226.26
5.0.00.0070.0346.25
4.4.90.0050.0204.78
4.4.80.0070.0294.76
4.4.70.0020.0174.76
4.4.60.0010.0184.75
4.4.50.0060.0164.77
4.4.40.0030.0334.71
4.4.30.0060.0174.76
4.4.20.0040.0194.85
4.4.10.0030.0194.85
4.4.00.0100.0284.76
4.3.110.0020.0214.67
4.3.100.0060.0124.66
4.3.90.0010.0174.63
4.3.80.0060.0234.58
4.3.70.0090.0144.63
4.3.60.0010.0184.63
4.3.50.0010.0194.63
4.3.40.0050.0294.54
4.3.30.0060.0183.30
4.3.20.0010.0213.28
4.3.10.0000.0193.23
4.3.00.0070.01313.59

preferences:
142.83 ms | 1394 KiB | 7 Q