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run code in 150+ php & hhvm versions
Bugs & Features
<?php function parse_literal($str) { $str = (string)$str; if (((string)(int)$str) === $str) { return (int)$str; } else if (((string)(float)$str) === $str) { return (float)$str; } else if (0 === strcasecmp($str, 'true')) { return true; } else if (0 === strcasecmp($str, 'false')) { return false; } else if (0 === strcasecmp($str, 'null')) { return false; } else if (preg_match('<^"((?:[^"\\\\]|\\\\.)*)"|\'((?:[^\'\\\\]|\\\\.)*)\'$>', $str)) { return eval('return ' . $str); } } var_dump(parse_literal('12')); var_dump(parse_literal('12.34')); var_dump(parse_literal('true')); var_dump(parse_literal('false')); var_dump(parse_literal('null')); var_dump(parse_literal('"hello world"')); var_dump(parse_literal('"string with \" quote and escape sequences\r\n"'));
based on rSWmP
Output for 7.0.0 - 7.1.0
int(12) float(12.34) bool(true) bool(false) bool(false) Parse error: syntax error, unexpected end of file, expecting ';' in /in/TH2kU(16) : eval()'d code on line 1
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
int(12) float(12.34) bool(true) bool(false) bool(false) Fatal error: syntax error, unexpected $end in /in/TH2kU(16)(9cd424ebbf4d021c894ffe4f5f48630f) : eval()'d code on line 1 bool(false) Fatal error: syntax error, unexpected $end in /in/TH2kU(16)(388f40cbeca852e880fd5ead3b51c844) : eval()'d code on line 1 bool(false)
Output for 5.4.11 - 5.6.28
int(12) float(12.34) bool(true) bool(false) bool(false) Parse error: syntax error, unexpected end of file in /in/TH2kU(16) : eval()'d code on line 1 bool(false) Parse error: syntax error, unexpected end of file in /in/TH2kU(16) : eval()'d code on line 1 bool(false)
Output for 5.4.0 - 5.4.10
int(12) float(12.34) bool(true) bool(false) bool(false) Parse error: syntax error, unexpected end of file in /in/TH2kU(16) : eval()'d code on line 1 bool(false) Parse error: syntax error, unexpected end of file in /in/TH2kU(16) : eval()'d code on line 1 bool(false)
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
int(12) float(12.34) bool(true) bool(false) bool(false) Parse error: syntax error, unexpected $end in /in/TH2kU(16) : eval()'d code on line 1 bool(false) Parse error: syntax error, unexpected $end in /in/TH2kU(16) : eval()'d code on line 1 bool(false)
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
int(12) float(12.34) bool(true) bool(false) bool(false) Parse error: parse error, unexpected $ in /in/TH2kU(16) : eval()'d code on line 1 bool(false) Parse error: parse error, unexpected $ in /in/TH2kU(16) : eval()'d code on line 1 bool(false)
Process exited with code 255.
Output for 4.3.2 - 4.3.4
int(12) float(12.34) bool(true) bool(false) bool(false) Parse error: parse error in /in/TH2kU(16) : eval()'d code on line 1 bool(false) Parse error: parse error in /in/TH2kU(16) : eval()'d code on line 1 bool(false)
Process exited with code 255.