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)
5.6.10.0100.07720.30
5.6.00.0100.06720.38
5.5.160.0170.06720.25
5.5.150.0130.07019.95
5.5.140.0070.08020.27
5.5.130.0030.05020.14
5.5.120.0070.07720.18
5.5.110.0070.08320.23
5.5.100.0100.06320.14
5.5.90.0070.05320.07
5.5.80.0100.07320.14
5.5.70.0100.08320.09
5.5.60.0100.07719.93
5.5.50.0100.08319.93
5.5.40.0070.04320.09
5.5.30.0170.07020.15
5.5.20.0130.07020.02
5.5.10.0130.06720.05
5.5.00.0130.07020.11
5.4.320.0100.04318.82
5.4.310.0070.07319.04
5.4.300.0070.07719.16
5.4.290.0070.07319.04
5.4.280.0070.04719.22
5.4.270.0100.06719.21
5.4.260.0100.07719.20
5.4.250.0030.06319.21
5.4.240.0070.04018.85
5.4.230.0000.08318.89
5.4.220.0070.07719.12
5.4.210.0100.07019.02
5.4.200.0000.08019.18
5.4.190.0000.05319.21
5.4.180.0170.06319.08
5.4.170.0070.07018.94
5.4.160.0100.07319.02
5.4.150.0100.07719.21
5.4.140.0070.07016.46
5.4.130.0070.07016.42
5.4.120.0000.07316.18
5.4.110.0030.06316.45
5.4.100.0030.07316.42
5.4.90.0030.06316.28
5.4.80.0130.05716.41
5.4.70.0070.07316.48
5.4.60.0030.07716.41
5.4.50.0070.07016.38
5.4.40.0100.07016.51
5.4.30.0000.07716.48
5.4.20.0070.06716.30
5.4.10.0070.05716.46
5.4.00.0100.05015.90
5.3.290.0030.07014.77
5.3.280.0070.06014.67
5.3.270.0070.08014.74
5.3.260.0030.08014.71
5.3.250.0070.06714.59
5.3.240.0000.07714.57
5.3.230.0030.07714.73
5.3.220.0130.06314.58
5.3.210.0030.07714.49
5.3.200.0130.05314.50
5.3.190.0030.04714.52
5.3.180.0030.04314.65
5.3.170.0030.08314.67
5.3.160.0100.07014.58
5.3.150.0030.05314.62
5.3.140.0070.07014.54
5.3.130.0070.07714.66
5.3.120.0170.06014.48
5.3.110.0070.07714.64
5.3.100.0070.07314.07
5.3.90.0100.07014.05
5.3.80.0070.07014.08
5.3.70.0070.06713.93
5.3.60.0000.06714.06
5.3.50.0100.07014.09
5.3.40.0130.06714.05
5.3.30.0070.06714.02
5.3.20.0130.06313.81
5.3.10.0100.07013.67
5.3.00.0030.06313.69
5.2.170.0030.05311.21
5.2.160.0030.06711.20
5.2.150.0170.02311.15
5.2.140.0070.03011.23
5.2.130.0030.03311.17
5.2.120.0100.05711.17
5.2.110.0070.06711.15
5.2.100.0100.05711.22
5.2.90.0200.04710.98
5.2.80.0030.06011.14
5.2.70.0000.04011.13
5.2.60.0100.05311.16
5.2.50.0070.05710.91
5.2.40.0000.07011.11
5.2.30.0070.06311.07
5.2.20.0100.05311.07
5.2.10.0030.06310.91
5.2.00.0030.05710.77
5.1.60.0070.05010.01
5.1.50.0070.05310.01
5.1.40.0070.05010.01
5.1.30.0070.04310.40
5.1.20.0030.05310.36
5.1.10.0030.05710.01
5.1.00.0030.05310.14
5.0.50.0000.04710.01
5.0.40.0070.04010.01
5.0.30.0130.05310.01
5.0.20.0030.04310.01
5.0.10.0030.04310.01
5.0.00.0000.06310.01
4.4.90.0030.03310.01
4.4.80.0030.02310.01
4.4.70.0000.02710.01
4.4.60.0000.02310.01
4.4.50.0030.03710.01
4.4.40.0100.04310.01
4.4.30.0000.02310.01
4.4.20.0000.04010.01
4.4.10.0000.02310.01
4.4.00.0000.04710.01
4.3.110.0000.03710.01
4.3.100.0000.02710.01
4.3.90.0100.01710.01
4.3.80.0030.04010.01
4.3.70.0030.03310.01
4.3.60.0070.03010.01
4.3.50.0030.02710.01
4.3.40.0030.05310.01
4.3.30.0000.03710.01
4.3.20.0000.03710.01
4.3.10.0030.03010.01
4.3.00.0000.03710.01

preferences:
143.6 ms | 1394 KiB | 7 Q