3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Thesaurus { protected $synonyms = array( array('great', 'wonderful', 'amazing', 'fabulous', 'awesome', 'stunning'), array('look', 'see', 'observe') ); public function lookup($word) { foreach ($this->synonyms as $index => $synonym) { if (in_array(strtolower($word), $synonym)) { unset($synonym[ array_search($word, $synonym) ]); return $synonym[ array_rand($synonym) ]; } } return $word; } } class Transformer { protected $thesaurus; public function __construct(Thesaurus $thesaurus) { $this->thesaurus = $thesaurus; } public function transform($string) { foreach (str_word_count($string, 1) as $word) { $new_word = $this->thesaurus->lookup($word); if ($word !== $new_word) { if (ctype_upper($word[0])) { $new_word = ucfirst($new_word); } $string = $this->replace($word, $new_word, $string); } } return $string; } private function replace($needle, $replacement, $haystack) { echo $needle . ' ' . $replacement . '<br>'; return preg_replace( '/(?<!#)' . preg_quote($needle) . '(?!#)/', '#' . $replacement . '#', $haystack, 1 ); } } $transformer = new Transformer(new Thesaurus); foreach (range(1, 20) as $index) { echo $transformer->transform('This is my great description. It really is wonderful. Look how wonderful it is.'), PHP_EOL; echo '-----------------------------------------------------' . 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)
7.4.00.0140.00715.20
7.3.120.0120.00914.93
7.3.110.0110.00714.77
7.3.100.0120.00614.79
7.3.90.0070.00315.29
7.3.80.0040.01114.97
7.3.70.0030.01314.91
7.3.60.0070.01015.12
7.3.50.0090.00615.05
7.3.40.0100.00314.98
7.3.30.0070.00714.79
7.3.20.0060.00616.87
7.3.10.0030.01516.97
7.3.00.0070.00916.91
7.2.250.0070.01015.51
7.2.240.0100.01015.46
7.2.230.0000.01015.50
7.2.220.0090.00915.22
7.2.210.0030.01415.54
7.2.200.0110.00415.03
7.2.190.0060.01315.37
7.2.180.0030.01314.98
7.2.170.0100.00615.09
7.2.130.0030.01717.20
7.2.120.0050.01016.82
7.2.110.0030.01317.16
7.2.100.0030.01217.30
7.2.90.0120.00617.01
7.2.80.0090.00617.38
7.2.70.0180.00417.15
7.2.60.0120.00616.75
7.2.50.0000.01016.76
7.2.40.0030.01017.36
7.2.30.0090.00617.30
7.2.20.0030.01017.17
7.2.10.0000.00917.23
7.2.00.0050.00918.59
7.1.330.0090.00616.02
7.1.320.0090.00616.02
7.1.310.0030.01316.13
7.1.300.0030.01315.96
7.1.290.0030.01315.92
7.1.280.0040.01215.95
7.1.270.0090.00615.89
7.1.260.0070.01016.14
7.1.250.0000.01515.78
7.1.70.0030.00717.39
7.1.60.0090.01519.17
7.1.50.0100.01317.13
7.1.00.0000.04722.59
7.0.200.0000.00716.90
7.0.140.0030.07721.92
7.0.100.0070.08319.94
7.0.90.0070.07719.89
7.0.80.0170.07019.88
7.0.70.0100.08019.86
7.0.60.0100.08020.05
7.0.50.0030.04320.28
7.0.40.0100.03720.03
7.0.30.0000.04720.07
7.0.20.0100.07720.15
7.0.10.0100.09320.13
7.0.00.0070.04020.13
5.6.280.0030.07721.08
5.6.250.0030.06020.69
5.6.240.0200.07320.66
5.6.230.0030.08720.68
5.6.220.0070.08720.61
5.6.210.0030.07020.61
5.6.200.0070.04321.07
5.6.190.0100.07021.05
5.6.180.0030.04321.09
5.6.170.0070.04020.98
5.6.160.0100.03721.13
5.6.150.0100.03720.93
5.6.140.0030.07321.08
5.6.130.0000.07721.06
5.6.120.0030.04321.11
5.6.110.0030.07721.09
5.6.100.0000.04721.12
5.6.90.0070.03720.95
5.6.80.0000.04320.45
5.6.70.0030.04020.47
5.6.60.0030.04320.50
5.6.50.0000.04320.48
5.6.40.0030.04020.51
5.6.30.0070.03720.43
5.6.20.0030.06020.39
5.6.10.0030.06320.42
5.6.00.0100.05720.50
5.5.380.0100.07720.30
5.5.370.0030.08320.34
5.5.360.0030.07020.30
5.5.350.0070.06320.39
5.5.340.0100.03720.66
5.5.330.0100.05720.95
5.5.320.0070.04020.92
5.5.310.0130.08020.82
5.5.300.0070.05320.82
5.5.290.0070.06320.78
5.5.280.0170.03020.79
5.5.270.0070.05020.81
5.5.260.0030.04320.84
5.5.250.0030.04320.61
5.5.240.0000.04720.29
5.5.230.0030.04720.28
5.5.220.0030.08320.19
5.5.210.0030.03720.31
5.5.200.0000.04320.29
5.5.190.0030.04020.13
5.5.180.0030.04020.26
5.5.160.0030.07320.29
5.5.150.0000.05020.13
5.5.140.0200.06020.27
5.5.130.0070.06320.12
5.5.120.0000.05020.29
5.5.110.0130.03320.14
5.5.100.0030.04320.14
5.5.90.0000.05720.09
5.5.80.0070.08020.03
5.5.70.0030.08320.07
5.5.60.0070.07320.04
5.5.50.0130.07319.95
5.5.40.0100.07719.94
5.5.30.0170.07320.10
5.5.20.0100.04319.94
5.5.10.0130.07020.11
5.5.00.0130.07720.06
5.4.450.0030.04019.50
5.4.440.0000.04719.45
5.4.430.0030.05019.45
5.4.420.0130.03019.53
5.4.410.0070.04019.05
5.4.400.0100.07719.04
5.4.390.0070.03319.06
5.4.380.0070.04019.04
5.4.370.0000.03718.88
5.4.360.0100.03019.16
5.4.350.0070.04319.11
5.4.340.0070.05718.88
5.4.320.0070.07718.92
5.4.310.0130.06719.05
5.4.300.0100.07319.13
5.4.290.0070.08018.89
5.4.280.0070.07719.10
5.4.270.0100.07719.22
5.4.260.0100.05319.04
5.4.250.0130.07019.04
5.4.240.0100.07019.13
5.4.230.0100.07319.21
5.4.220.0170.06718.89
5.4.210.0100.07319.16
5.4.200.0100.07719.18
5.4.190.0100.07319.08
5.4.180.0000.07319.08
5.4.170.0070.04019.02
5.4.160.0200.06718.83
5.4.150.0070.07719.21
5.4.140.0070.08016.46
5.4.130.0100.04716.47
5.4.120.0100.06716.30
5.4.110.0170.04316.53
5.4.100.0170.06716.49
5.4.90.0070.06716.55
5.4.80.0070.04716.47
5.4.70.0130.06316.48
5.4.60.0070.07316.32
5.4.50.0030.07316.48
5.4.40.0100.06016.39
5.4.30.0000.08016.42
5.4.20.0030.03716.45
5.4.10.0100.07316.36
5.4.00.0300.05315.90
5.3.290.0130.07314.75
5.3.280.0070.07714.54
5.3.270.0000.08714.71
5.3.260.0130.06714.57
5.3.250.0030.07314.75
5.3.240.0030.08014.63
5.3.230.0030.05014.68
5.3.220.0100.05014.65
5.3.210.0030.06314.65
5.3.200.0130.06314.64
5.3.190.0070.04314.54
5.3.180.0030.08314.52
5.3.170.0000.08014.69
5.3.160.0100.07314.71
5.3.150.0070.07314.64
5.3.140.0100.07714.63
5.3.130.0100.07014.70
5.3.120.0170.05714.68
5.3.110.0100.07714.51
5.3.100.0000.07714.03
5.3.90.0130.07013.96
5.3.80.0130.03714.09
5.3.70.0070.07714.15
5.3.60.0000.06014.08
5.3.50.0030.04314.00
5.3.40.0070.06714.09
5.3.30.0070.07713.99
5.3.20.0100.07713.77
5.3.10.0070.03313.66
5.3.00.0070.03713.77
5.2.170.0070.04312.18
5.2.160.0030.06712.18
5.2.150.0070.06012.18
5.2.140.0030.06712.18
5.2.130.0130.02312.18
5.2.120.0030.03012.18
5.2.110.0070.06312.18
5.2.100.0100.06012.18
5.2.90.0100.06012.18
5.2.80.0100.05712.18
5.2.70.0070.04712.18
5.2.60.0030.06312.18
5.2.50.0000.03712.18
5.2.40.0070.06012.18
5.2.30.0030.05712.18
5.2.20.0000.05712.18
5.2.10.0000.06712.18
5.2.00.0030.04712.18
5.1.60.0030.05712.18
5.1.50.0000.05012.18
5.1.40.0030.05712.18
5.1.30.0000.05312.18
5.1.20.0070.02712.18
5.1.10.0030.05312.18
5.1.00.0100.05312.18
5.0.50.0030.04012.18
5.0.40.0000.04712.18
5.0.30.0030.06712.18
5.0.20.0030.04012.18
5.0.10.0000.04712.18
5.0.00.0030.05312.18
4.4.90.0030.02712.18
4.4.80.0000.03712.18
4.4.70.0030.03312.18
4.4.60.0030.03312.18
4.4.50.0030.03712.18
4.4.40.0030.02712.18
4.4.30.0030.03312.18
4.4.20.0000.03712.18
4.4.10.0030.03312.18
4.4.00.0070.05312.18
4.3.110.0070.02712.18
4.3.100.0030.03312.18
4.3.90.0000.03712.18
4.3.80.0000.05712.18
4.3.70.0030.02012.18
4.3.60.0000.02712.18
4.3.50.0000.02712.18
4.3.40.0070.04312.18
4.3.30.0000.03312.18
4.3.20.0000.03712.18
4.3.10.0000.02712.18
4.3.00.0000.03712.18

preferences:
33.88 ms | 401 KiB | 5 Q