3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Thesaurus { protected $synonyms = array( array('wonderful', 'great', 'amazing', 'fabulous', 'awesome', 'stunning'), array('look', 'see', 'observe') ); public function lookup($word) { foreach ($this->synonyms as $index => $synonym) { if (in_array(strtolower($word), $synonym)) { unset($synonym[ array_search($word) ]); 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) { $string = $this->replace($word, $this->thesaurus->lookup($word), $string); } return $string; } private function replace($needle, $replacement, $haystack) { return preg_replace( '~' . preg_quote($needle, '~') . '~i', $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; }

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)
7.0.70.0270.03719.91
7.0.60.0400.03319.96
7.0.50.0700.06020.24
7.0.40.0170.08320.08
7.0.30.0230.07020.07
7.0.20.0130.08320.05
7.0.10.0070.09020.13
7.0.00.0070.08319.95
5.6.220.0100.04020.66
5.6.210.0030.05720.68
5.6.200.0230.08021.07
5.6.190.0130.07720.97
5.6.180.0100.08721.08
5.6.170.0030.09021.15
5.6.160.0170.07021.05
5.6.150.0200.07321.05
5.6.140.0130.05321.06
5.6.130.0030.08720.96
5.6.120.0070.04321.04
5.6.110.0130.08321.02
5.6.100.0100.09721.08
5.6.90.0170.07320.93
5.6.80.0030.07320.45
5.6.70.0070.07720.48
5.6.60.0130.09020.44
5.6.50.0070.08020.35
5.6.40.0170.06720.38
5.6.30.0070.07720.41
5.6.20.0100.08720.53
5.6.10.0030.04720.34
5.6.00.0000.08020.41
5.5.360.0100.03720.32
5.5.350.0070.03320.36
5.5.340.0130.08020.89
5.5.330.0130.06020.75
5.5.320.0130.07720.80
5.5.310.0070.08720.93
5.5.300.0070.06720.75
5.5.290.0170.08320.91
5.5.280.0030.05020.95
5.5.270.0300.06720.83
5.5.260.0000.09720.85
5.5.250.0130.08320.62
5.5.240.0230.06320.16
5.5.230.0100.05020.25
5.5.220.0070.08020.31
5.5.210.0300.06320.03
5.5.200.0170.07720.25
5.5.190.0030.08720.24
5.5.180.0070.08320.00
5.5.160.0100.07720.14
5.5.150.0100.07320.09
5.5.140.0100.08020.14
5.5.130.0030.08320.24
5.5.120.0130.07720.22
5.5.110.0130.07020.20
5.5.100.0100.08020.03
5.5.90.0030.09020.18
5.5.80.0000.05320.08
5.5.70.0070.08720.13
5.5.60.0130.07720.10
5.5.50.0030.07719.98
5.5.40.0100.07720.17
5.5.30.0230.06720.09
5.5.20.0000.08319.97
5.5.10.0100.07320.00
5.5.00.0130.07720.05
5.4.450.0100.08319.55
5.4.440.0030.09019.36
5.4.430.0000.07019.48
5.4.420.0030.08719.46
5.4.410.0100.07719.23
5.4.400.0170.06718.88
5.4.390.0170.06719.16
5.4.380.0170.07019.09
5.4.370.0100.08319.04
5.4.360.0070.08019.21
5.4.350.0000.04719.14
5.4.340.0030.08319.13
5.4.320.0070.07718.89
5.4.310.0030.05719.21
5.4.300.0130.07318.90
5.4.290.0070.08018.90
5.4.280.0030.04318.94
5.4.270.0070.07019.13
5.4.260.0030.07019.15
5.4.250.0030.07319.17
5.4.240.0070.08319.15
5.4.230.0100.07718.95
5.4.220.0070.07719.02
5.4.210.0170.07019.16
5.4.200.0130.07719.24
5.4.190.0070.05718.99
5.4.180.0070.08019.04
5.4.170.0000.09019.04
5.4.160.0070.07718.88
5.4.150.0100.07019.02
5.4.140.0070.08016.39
5.4.130.0000.08316.54
5.4.120.0070.07316.45
5.4.110.0000.08716.52
5.4.100.0030.08016.45
5.4.90.0100.07316.39
5.4.80.0030.07316.43
5.4.70.0070.08016.40
5.4.60.0070.07716.38
5.4.50.0070.07316.36
5.4.40.0100.04716.41
5.4.30.0000.05016.25
5.4.20.0170.06316.33
5.4.10.0130.06316.48
5.4.00.0100.07315.90
5.3.290.0070.04314.73
5.3.280.0100.07314.53
5.3.270.0070.08014.63
5.3.260.0030.05314.60
5.3.250.0130.07014.65
5.3.240.0130.04714.63
5.3.230.0130.07314.75
5.3.220.0070.07714.61
5.3.210.0030.08314.70
5.3.200.0030.08314.51
5.3.190.0130.08014.71
5.3.180.0070.08014.64
5.3.170.0170.07314.68
5.3.160.0070.07014.70
5.3.150.0170.06014.67
5.3.140.0030.08314.56
5.3.130.0070.08014.62
5.3.120.0100.07714.70
5.3.110.0130.07714.68
5.3.100.0030.08314.04
5.3.90.0130.07013.96
5.3.80.0130.07313.98
5.3.70.0100.08014.17
5.3.60.0030.08314.05
5.3.50.0030.05014.02
5.3.40.0200.06313.89
5.3.30.0070.06714.04
5.3.20.0030.03713.76
5.3.10.0000.08013.80
5.3.00.0030.08013.71
5.2.170.0170.05313.39
5.2.160.0000.06713.39
5.2.150.0030.07013.39
5.2.140.0030.06313.39
5.2.130.0130.05713.39
5.2.120.0030.05713.39
5.2.110.0070.06313.39
5.2.100.0030.06713.39
5.2.90.0170.05313.39
5.2.80.0070.06313.39
5.2.70.0070.06013.39
5.2.60.0000.07013.39
5.2.50.0100.04713.39
5.2.40.0000.05313.39
5.2.30.0100.06013.39
5.2.20.0100.04713.39
5.2.10.0000.06713.39
5.2.00.0070.06013.39
5.1.60.0070.05713.39
5.1.50.0030.06013.39
5.1.40.0000.06013.39
5.1.30.0030.07313.39
5.1.20.0000.06013.39
5.1.10.0070.05713.39
5.1.00.0030.06013.39
5.0.50.0030.03013.39
5.0.40.0030.05013.39
5.0.30.0000.05013.39
5.0.20.0100.03713.39
5.0.10.0170.03713.39
5.0.00.0030.06313.39
4.4.90.0030.03713.39
4.4.80.0130.02313.39
4.4.70.0030.03713.39
4.4.60.0000.03713.39
4.4.50.0030.02713.39
4.4.40.0000.05313.39
4.4.30.0070.02713.39
4.4.20.0000.04013.39
4.4.10.0000.03713.39
4.4.00.0000.05713.39
4.3.110.0070.03013.39
4.3.100.0030.03713.39
4.3.90.0070.03013.39
4.3.80.0030.05313.39
4.3.70.0000.03713.39
4.3.60.0000.03713.39
4.3.50.0030.03013.39
4.3.40.0000.04713.39
4.3.30.0030.03713.39
4.3.20.0100.01713.39
4.3.10.0030.03313.39
4.3.00.0000.03713.39

preferences:
50.38 ms | 400 KiB | 5 Q