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run code in 300+ PHP versions simultaneously
<?php class ValueEncoder { public function encode($value) { $result = urlencode($value); return $result; } } class ValueDecoder { public function decode($value) { $result = urldecode($value); return $result; } } class RefEncoder { public function encode(&$value) { $value = urlencode($value); } } class RefDecoder { public function decode(&$value) { $value = urldecode($value); } } function genData() { return str_repeat('test', 2000000); } function valueTranscode() { $data = genData(); $encoder = new ValueEncoder(); $decoder = new ValueDecoder(); $data = $encoder->encode($data); $data = $decoder->decode($data); $data = strlen($data); } function refTranscode() { $data = genData(); $encoder = new RefEncoder(); $decoder = new RefDecoder(); $encoder->encode($data); $decoder->decode($data); $data = strlen($data); } $isRef = isset($argv[1]) && 'ref' === $argv[1]; echo ($isRef ? 'Ref: ' : 'Value: '); $s = microtime(true); for ($i = 0; $i < 20; ++$i) { if ($isRef) { refTranscode(); } else { valueTranscode(); } } $d = microtime(true) - $s; echo number_format($d, 2) . ' s, '; #echo number_format(memory_get_peak_usage(true)/1000/1000,2) . ' MB'. PHP_EOL; echo (!$isRef ? 'Ref: ' : 'Value: '); $s = microtime(true); for ($i = 0; $i < 20; ++$i) { if (!$isRef) { refTranscode(); } else { valueTranscode(); } } $d = microtime(true) - $s; echo number_format($d, 2) . ' s, ';
Output for 7.3.1
Value: 0.88 s, Ref: 0.73 s,
Output for 7.3.0
Value: 0.85 s, Ref: 1.08 s,
Output for 7.2.13
Value: 0.88 s, Ref: 0.89 s,
Output for 7.2.12
Value: 0.94 s, Ref: 0.87 s,
Output for 7.2.11
Value: 0.91 s, Ref:
Process exited with code 137.
Output for 7.2.10
Value: 1.11 s, Ref: 0.86 s,
Output for 7.2.3, 7.2.9
Value:
Process exited with code 137.
Output for 7.2.8
Value: 1.27 s, Ref:
Process exited with code 137.
Output for 7.2.7
Value: 0.80 s, Ref:
Process exited with code 137.
Output for 7.2.6
Value: 0.86 s, Ref:
Process exited with code 137.
Output for 7.2.5

Process exited with code 137.
Output for 7.2.4
Value: 1.50 s, Ref:
Process exited with code 137.
Output for 7.2.2
Value: 0.99 s, Ref:
Process exited with code 137.
Output for 7.2.1
Value: 0.87 s, Ref:
Process exited with code 137.
Output for 7.2.0
Value: 0.83 s, Ref: 0.75 s,
Output for 7.1.25
Value: 0.82 s, Ref: 0.76 s,
Output for 7.1.7
Value: 0.62 s, Ref: 0.58 s,
Output for 7.1.6
Value: 0.59 s, Ref: 0.52 s,
Output for 7.1.5
Value: 0.56 s, Ref: 0.50 s,
Output for 7.1.0
Value: 0.59 s, Ref: 0.53 s,
Output for 7.0.20
Value: 1.41 s, Ref:
Process exited with code 137.
Output for 7.0.14
Value: 0.58 s, Ref: 0.53 s,
Output for 7.0.10
Value: 1.20 s, Ref: 0.85 s,
Output for 7.0.9
Value: 0.86 s, Ref: 1.19 s,
Output for 7.0.8
Value: 1.07 s, Ref: 0.96 s,
Output for 7.0.7
Value: 1.00 s, Ref: 0.87 s,
Output for 7.0.6
Value: 1.09 s, Ref: 0.88 s,
Output for 7.0.5
Value: 1.48 s, Ref:
Process exited with code 137.
Output for 7.0.4
Value: 1.07 s, Ref: 1.07 s,
Output for 7.0.3
Value: 1.53 s, Ref:
Process exited with code 137.
Output for 7.0.2
Value: 1.29 s, Ref: 0.75 s,
Output for 7.0.1
Value: 0.86 s, Ref: 0.91 s,
Output for 7.0.0
Value: 0.90 s, Ref: 0.87 s,
Output for 5.4.6, 5.6.25
Value: 0.46 s, Ref: 0.51 s,
Output for 5.6.24
Value: 0.45 s, Ref: 0.44 s,
Output for 5.4.1, 5.5.32, 5.6.23
Value: 0.44 s, Ref: 0.43 s,
Output for 5.6.3, 5.6.22
Value: 0.46 s, Ref: 0.49 s,
Output for 5.6.6, 5.6.16, 5.6.21
Value: 0.46 s, Ref: 0.47 s,
Output for 5.4.7, 5.4.44, 5.5.3, 5.5.5, 5.5.9, 5.6.20
Value: 0.49 s, Ref: 0.50 s,
Output for 5.4.4, 5.4.21, 5.6.17, 5.6.19
Value: 0.46 s, Ref: 0.45 s,
Output for 5.4.32, 5.4.41, 5.5.0, 5.5.28, 5.6.11, 5.6.18
Value: 0.47 s, Ref: 0.48 s,
Output for 5.2.6, 5.4.27, 5.5.30, 5.6.14 - 5.6.15
Value: 0.38 s, Ref: 0.43 s,
Output for 5.0.0, 5.4.39 - 5.4.40, 5.4.43, 5.6.10, 5.6.13
Value: 0.47 s, Ref: 0.47 s,
Output for 5.5.16, 5.6.12
Value: 0.45 s, Ref: 0.51 s,
Output for 5.6.9
Value: 0.44 s, Ref: 0.51 s,
Output for 5.4.23, 5.4.31, 5.5.18, 5.6.8
Value: 0.46 s, Ref: 0.52 s,
Output for 5.5.2, 5.5.14, 5.5.25 - 5.5.26, 5.6.4, 5.6.7
Value: 0.47 s, Ref: 0.49 s,
Output for 5.6.5
Value: 0.48 s, Ref: 0.42 s,
Output for 5.6.2
Value: 0.48 s, Ref: 0.57 s,
Output for 5.4.8, 5.4.45, 5.5.29, 5.6.1
Value: 0.47 s, Ref: 0.50 s,
Output for 5.4.9, 5.4.22, 5.4.24, 5.4.30, 5.4.42, 5.6.0
Value: 0.48 s, Ref: 0.49 s,
Output for 5.4.28, 5.5.4, 5.5.38
Value: 0.47 s, Ref: 0.52 s,
Output for 5.5.37
Value: 0.52 s, Ref: 0.52 s,
Output for 5.2.1, 5.4.29, 5.5.1, 5.5.36
Value: 0.45 s, Ref: 0.43 s,
Output for 5.4.2, 5.5.11 - 5.5.12, 5.5.35
Value: 0.43 s, Ref: 0.43 s,
Output for 5.4.19, 5.5.19, 5.5.34
Value: 0.49 s, Ref: 0.51 s,
Output for 5.4.11, 5.4.20, 5.4.34, 5.5.27, 5.5.33
Value: 0.48 s, Ref: 0.50 s,
Output for 5.4.13, 5.4.15, 5.5.31
Value: 0.46 s, Ref: 0.48 s,
Output for 5.4.12, 5.4.16, 5.4.18, 5.5.24
Value: 0.46 s, Ref: 0.46 s,
Output for 5.5.23
Value: 0.45 s, Ref: 0.42 s,
Output for 5.5.22
Value: 0.52 s, Ref: 0.48 s,
Output for 5.5.7, 5.5.21
Value: 0.47 s, Ref: 0.46 s,
Output for 5.4.37, 5.5.20
Value: 0.50 s, Ref: 0.51 s,
Output for 5.4.36, 5.4.38, 5.5.15
Value: 0.48 s, Ref: 0.48 s,
Output for 5.5.10, 5.5.13
Value: 0.41 s, Ref: 0.43 s,
Output for 5.5.8
Value: 0.45 s, Ref: 0.52 s,
Output for 5.3.23, 5.3.27, 5.5.6
Value: 0.40 s, Ref: 0.43 s,
Output for 5.4.35
Value: 0.49 s, Ref: 0.48 s,
Output for 5.4.26
Value: 0.40 s, Ref: 0.42 s,
Output for 5.4.25
Value: 0.48 s, Ref: 0.52 s,
Output for 5.4.17
Value: 0.49 s, Ref: 0.52 s,
Output for 5.4.14
Value: 0.49 s, Ref: 0.49 s,
Output for 5.4.10
Value: 0.46 s, Ref: 0.44 s,
Output for 5.4.5
Value: 0.51 s, Ref: 0.52 s,
Output for 5.0.5, 5.4.3
Value: 0.41 s, Ref: 0.42 s,
Output for 5.4.0
Value: 0.45 s, Ref: 0.41 s,
Output for 5.3.29
Value: 0.43 s, Ref: 0.42 s,
Output for 5.1.1 - 5.1.2, 5.2.5, 5.2.7, 5.2.9, 5.2.11, 5.3.2, 5.3.28
Value: 0.39 s, Ref: 0.41 s,
Output for 5.3.20, 5.3.24, 5.3.26
Value: 0.39 s, Ref: 0.43 s,
Output for 5.3.25
Value: 0.38 s, Ref: 0.36 s,
Output for 5.3.22
Value: 0.44 s, Ref: 0.46 s,
Output for 5.2.3, 5.2.13, 5.3.15, 5.3.21
Value: 0.37 s, Ref: 0.40 s,
Output for 5.1.3, 5.3.3, 5.3.13, 5.3.18 - 5.3.19
Value: 0.37 s, Ref: 0.41 s,
Output for 5.3.17
Value: 0.52 s, Ref: 0.51 s,
Output for 5.1.6, 5.3.10 - 5.3.11, 5.3.16
Value: 0.40 s, Ref: 0.41 s,
Output for 5.3.14
Value: 0.57 s, Ref: 0.53 s,
Output for 5.2.14, 5.3.12
Value: 0.39 s, Ref: 0.42 s,
Output for 5.2.2, 5.3.9
Value: 0.30 s, Ref: 0.35 s,
Output for 5.3.8
Value: 0.36 s, Ref: 0.43 s,
Output for 5.2.4, 5.3.7
Value: 0.33 s, Ref: 0.35 s,
Output for 5.0.2, 5.0.4, 5.2.16 - 5.2.17, 5.3.0, 5.3.5 - 5.3.6
Value: 0.38 s, Ref: 0.41 s,
Output for 5.3.4
Value: 0.30 s, Ref: 0.36 s,
Output for 5.3.1
Value: 0.39 s, Ref: 0.44 s,
Output for 5.2.15
Value: 0.41 s, Ref: 0.44 s,
Output for 5.2.12
Value: 0.37 s, Ref: 0.38 s,
Output for 5.2.10
Value: 0.34 s, Ref: 0.35 s,
Output for 5.1.4, 5.2.8
Value: 0.38 s, Ref: 0.42 s,
Output for 5.2.0
Value: 0.37 s, Ref: 0.42 s,
Output for 5.1.5
Value: 0.36 s, Ref: 0.42 s,
Output for 5.1.0
Value: 0.36 s, Ref: 0.41 s,
Output for 5.0.3
Value: 0.47 s, Ref: 0.51 s,
Output for 5.0.1
Value: 0.37 s, Ref: 0.39 s,
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/fqH68 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/fqH68 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/fqH68 on line 5
Process exited with code 255.
preferences:
203.47 ms | 401 KiB | 231 Q