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run code in 300+ PHP versions simultaneously
<?php $tokens = token_get_all('<?php $a = "${phpinfo()}";'); foreach ($tokens as $token) { if (is_array($token)) echo (token_name($token[0]) . ': "' . $token[1] . '"'."\n"); else echo ('"' . $token . '"'."\n"); }
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
T_OPEN_TAG: "<?php " T_VARIABLE: "$a" T_WHITESPACE: " " "=" T_WHITESPACE: " " """ T_DOLLAR_OPEN_CURLY_BRACES: "${" T_STRING: "phpinfo" "(" ")" "}" """ ";"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
T_OPEN_TAG: "<?php " T_VARIABLE: "$a" T_WHITESPACE: " " "=" T_WHITESPACE: " " """ T_DOLLAR_OPEN_CURLY_BRACES: "${" T_STRING_VARNAME: "phpinfo" "(" ")" "}" """ ";"

preferences:
253.36 ms | 403 KiB | 312 Q