3v4l.org

run code in 300+ PHP versions simultaneously
<?php class SingleInstance { private static $instances = []; public static function load($class, $args = null) { if ($args) { $args = implode(', ', $args); } $checksum = md5($class.$args); if (array_key_exists($checksum, self::$instances)) { echo "Hit!"; return self::$instances[$checksum]; } self::$instances[$checksum] = new $class($args); return self::$instances[$checksum]; } } class Words { private $word; public function __construct($word) { $this->word = $word; } public function show() { return $this->word; } } $a = SingleInstance::load('Words', ['Dog']); echo $a->show().PHP_EOL; $b = SingleInstance::load('Words', ['Cat']); echo $b->show().PHP_EOL; $c = SingleInstance::load('Words', ['Cat']); echo $c->show().PHP_EOL;

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)
8.5.10.0080.01018.26
8.5.00.0170.00520.11
8.4.150.0020.00114.05
8.4.140.0130.00817.73
8.4.130.0140.00618.97
8.4.120.0080.00718.72
8.4.110.0050.01124.26
8.4.100.0150.00617.73
8.4.90.0130.00720.29
8.4.80.0060.00218.88
8.4.70.0110.00820.72
8.4.60.0040.00520.69
8.4.50.0130.00620.70
8.4.40.0040.00419.37
8.4.30.0200.00017.46
8.4.20.0170.00319.51
8.4.10.0000.01019.58
8.3.280.0110.01018.28
8.3.270.0110.00916.59
8.3.260.0100.01016.46
8.3.250.0120.00716.49
8.3.240.0070.00116.57
8.3.230.0050.00416.53
8.3.220.0070.01119.24
8.3.210.0050.00916.62
8.3.200.0060.00316.85
8.3.190.0060.00317.18
8.3.180.0120.00718.80
8.3.170.0040.00417.03
8.3.160.0110.00718.47
8.3.150.0060.00916.73
8.3.140.0030.00618.30
8.3.130.0070.00316.69
8.3.120.0060.00920.78
8.3.110.0000.00916.78
8.3.100.0100.00024.06
8.3.90.0150.00026.77
8.3.80.0090.00016.50
8.3.70.0070.00716.58
8.3.60.0090.00916.50
8.3.50.0100.00317.23
8.3.40.0180.00318.93
8.3.30.0040.01118.77
8.3.20.0030.00521.86
8.3.10.0000.00823.46
8.3.00.0060.00319.92
8.2.290.0030.00518.48
8.2.280.0080.01220.00
8.2.270.0070.01418.50
8.2.260.0100.00717.04
8.2.250.0040.01118.09
8.2.240.0080.00018.79
8.2.230.0050.00320.94
8.2.220.0030.00637.54
8.2.210.0090.00926.77
8.2.200.0060.00318.29
8.2.190.0090.01216.58
8.2.180.0110.00718.16
8.2.170.0070.01022.96
8.2.160.0160.00322.09
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00421.12
8.2.110.0030.01421.06
8.2.100.0100.00317.72
8.2.90.0030.00518.32
8.2.80.0040.00418.22
8.2.70.0070.00319.36
8.2.60.0030.00617.63
8.2.50.0050.00318.07
8.2.40.0030.00518.22
8.2.30.0050.00218.25
8.2.20.0040.00418.04
8.2.10.0060.00318.03
8.2.00.0000.00818.22
8.1.330.0070.00916.19
8.1.320.0120.00718.18
8.1.310.0040.00418.50
8.1.300.0040.01516.06
8.1.290.0040.00430.84
8.1.280.0110.00425.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0060.00319.13
8.1.230.0110.00020.62
8.1.220.0030.00517.79
8.1.210.0030.00518.77
8.1.200.0060.00317.36
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0080.00018.84
8.1.160.0040.00418.82
8.1.150.0030.00620.29
8.1.140.0050.00319.54
8.1.130.0030.00319.04
8.1.120.0070.00017.49
8.1.110.0060.00317.45
8.1.100.0040.00417.47
8.1.90.0030.00617.35
8.1.80.0020.00517.36
8.1.70.0030.00317.37
8.1.60.0000.00917.50
8.1.50.0050.00317.56
8.1.40.0050.00217.43
8.1.30.0000.00817.63
8.1.20.0000.00817.56
8.1.10.0000.00817.52
8.1.00.0050.00317.41
8.0.300.0000.00719.95
8.0.290.0000.00816.63
8.0.280.0040.00418.35
8.0.270.0030.00317.21
8.0.260.0070.00016.84
8.0.250.0000.00616.97
8.0.240.0100.00016.99
8.0.230.0000.00716.95
8.0.220.0000.00816.96
8.0.210.0030.00316.81
8.0.200.0030.00316.98
8.0.190.0070.00016.98
8.0.180.0030.00316.91
8.0.170.0000.01216.84
8.0.160.0040.00416.98
8.0.150.0040.00416.88
8.0.140.0030.00516.87
8.0.130.0030.00313.37
8.0.120.0070.00016.80
8.0.110.0070.00016.84
8.0.100.0000.00716.79
8.0.90.0040.00416.90
8.0.80.0000.01516.86
8.0.70.0000.00816.85
8.0.60.0040.00416.94
8.0.50.0050.00316.74
8.0.30.0080.01017.09
8.0.20.0080.01117.40
8.0.10.0040.00417.06
8.0.00.0120.00616.85
7.4.330.0030.00415.55
7.4.320.0060.00016.56
7.4.300.0070.00016.63
7.4.290.0030.00316.62
7.4.280.0040.00416.63
7.4.270.0000.00716.46
7.4.260.0040.00416.46
7.4.250.0000.00816.50
7.4.240.0000.00716.50
7.4.230.0000.00716.32
7.4.220.0000.00716.45
7.4.210.0070.01116.56
7.4.200.0070.00016.63
7.4.160.0090.00716.52
7.4.140.0100.00917.86
7.4.130.0070.01716.50
7.4.120.0080.00916.49
7.4.110.0070.01016.70
7.4.100.0170.00316.66
7.4.90.0060.01116.54
7.4.80.0110.01419.39
7.4.70.0070.01416.52
7.4.60.0030.01516.46
7.4.50.0070.00316.40
7.4.40.0100.00616.50
7.4.00.0080.00815.01
7.3.330.0050.00013.38
7.3.320.0000.00613.20
7.3.310.0030.00316.22
7.3.300.0040.00316.24
7.3.290.0080.00916.37
7.3.280.0050.01016.34
7.3.260.0130.00916.36
7.3.240.0080.01216.52
7.3.230.0120.01216.35
7.3.210.0070.01016.60
7.3.200.0100.00716.26
7.3.190.0160.00016.38
7.3.180.0030.01316.46
7.3.170.0030.01516.37
7.3.160.0090.00616.45
7.3.120.0110.00714.61
7.3.110.0100.01015.11
7.3.100.0040.01114.88
7.3.90.0030.01315.05
7.3.80.0070.00715.13
7.3.70.0000.01614.95
7.3.60.0040.00814.96
7.3.50.0130.00314.52
7.3.40.0060.00914.94
7.3.30.0070.00714.75
7.3.20.0040.00716.81
7.3.10.0020.01116.55
7.3.00.0010.01016.66
7.2.330.0140.00316.89
7.2.320.0130.00816.90
7.2.310.0080.00816.42
7.2.300.0100.00716.77
7.2.290.0060.01516.92
7.2.250.0130.00915.22
7.2.240.0030.01415.19
7.2.230.0030.00715.22
7.2.220.0030.01215.19
7.2.210.0060.00915.04
7.2.200.0030.01015.20
7.2.190.0120.00315.06
7.2.180.0040.01515.04
7.2.170.0060.01015.14
7.2.130.0000.01317.09
7.2.120.0030.00516.84
7.2.110.0030.00917.06
7.2.100.0110.00416.81
7.2.90.0060.00617.01
7.2.80.0070.00716.89
7.2.70.0050.00517.08
7.2.60.0050.00616.72
7.2.50.0000.01016.80
7.2.40.0030.00716.91
7.2.30.0090.00017.11
7.2.20.0130.01217.46
7.2.10.0110.01017.31
7.2.00.0130.00917.32
7.1.330.0100.00715.75
7.1.320.0140.00015.62
7.1.310.0090.00615.56
7.1.300.0030.00615.78
7.1.290.0070.01115.81
7.1.280.0060.00615.81
7.1.270.0070.00715.91
7.1.260.0040.00815.89
7.1.250.0060.00615.63
7.1.200.0040.00815.52
7.1.140.0160.01517.06
7.1.130.0180.01617.02
7.1.120.0170.01316.92
7.1.110.0160.01716.32
7.1.100.0200.00716.50
7.1.90.0190.01016.45
7.1.80.0150.00816.45
7.1.70.0130.01415.36
7.1.60.0380.01533.44
7.1.50.0770.01733.02
7.1.40.0360.01532.46
7.1.30.0340.01532.77
7.1.20.0370.01432.78
7.1.10.0110.01514.78
7.1.00.0200.01014.90

preferences:
38.87 ms | 403 KiB | 5 Q