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run code in 150+ php & hhvm versions
Bugs & Features
<?php function getUTF8CharCode($c) { $h = ord($c{0}); if ($h <= 0x7F) { return $h; } else if ($h < 0xC2) { return false; } else if ($h <= 0xDF) { return ($h & 0x1F) << 6 | (ord($c{1}) & 0x3F); } else if ($h <= 0xEF) { return ($h & 0x0F) << 12 | (ord($c{1}) & 0x3F) << 6 | (ord($c{2}) & 0x3F); } else if ($h <= 0xF4) { return ($h & 0x0F) << 18 | (ord($c{1}) & 0x3F) << 12 | (ord($c{2}) & 0x3F) << 6 | (ord($c{3}) & 0x3F); } else { return false; } } function escapeCSSCharacter($c) { return "\\" . base_convert(getUTF8CharCode($c), 10, 16) . " "; } function escapeCSSRule($data, array $immuneChars = array()) { $result = ""; for ($i = 0; $i < mb_strlen($data); $i++) { $currChar = mb_substr($data, $i, 1); if (getUTF8CharCode($currChar) > 256 && !preg_match("/^\w$/", $currChar) && !in_array($currChar, $immuneChars)) { $result .= escapeCSSCharacter($currChar); } else { $result .= $currChar; } } return $result; } echo escapeCSSRule("#BADA55");
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
#BADA55
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/XSBOu on line 27
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting '&' or T_VARIABLE or T_CONST in /in/XSBOu on line 27
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE or T_CONST in /in/XSBOu on line 27
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/XSBOu on line 27
Process exited with code 255.