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<?php |
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namespace w3l\Holt45; |
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trait Strings { |
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/** |
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* Obfuscate string (url-safe and somewhat hard to guess). |
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* |
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* @param string $input The text that should be obfuscated |
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* @return string Obfuscated string |
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*/ |
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public static function obfuscateString($input) { |
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return bin2hex(base64_encode(strrev($input))); |
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} |
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/** |
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* Deobfuscate string |
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* |
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* @param string $input Obfuscated string |
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* @return string Deobfuscated string |
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*/ |
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public static function deobfuscateString($input) { |
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return strrev(base64_decode(hex2bin($input))); |
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} |
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/** |
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* Convert <textarea> to [textarea]. |
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* |
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* @param string $html |
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* @return string |
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*/ |
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public static function textareaEncode($html) { |
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return preg_replace("/<textarea(.*?)>(.*?)<\/textarea>/is", "[textarea$1]$2[/textarea]", $html); |
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} |
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/** |
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* Convert [textarea] to <textarea>. |
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* |
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* @param string $html |
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* @return string |
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*/ |
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public static function textareaDecode($html) { |
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return preg_replace("/\[textarea(.*?)\](.*?)\[\/textarea\]/is", "<textarea$1>$2</textarea>", $html); |
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} |
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/** |
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* To replace "Hallo [@var] world" with $value. |
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* |
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* @example replace_string($string, array("val1" => "foo", "val2" => "bar")) |
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* |
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* @param string $langString String containing placeholder. |
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* @param array $dynamicContent key->value array. |
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* @return string String with placeholder replaced. |
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*/ |
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public static function replaceString($langString, $dynamicContent = array()) { |
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foreach ($dynamicContent as $k => $v) { |
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$langString = str_replace("[@".$k."]", $v, $langString); |
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} |
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return $langString; |
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} |
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/** |
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* Creates rainbow-colored text. |
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* |
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* @param string $text Text wanted coloured. |
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* @return string String with span-tags with color. |
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*/ |
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public static function rainbowText($text) { |
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$colorsBase = array( |
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array(255, 0, 0), |
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array(255, 102, 0), |
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array(255, 238, 0), |
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array(0, 255, 0), |
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array(0, 153, 255), |
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array(68, 0, 255), |
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array(153, 0, 255) |
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); |
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$colorsBuild = array(); |
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$strlenText = strlen($text); |
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if($strlenText > 7) { |
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while(count($colorsBuild) < $strlenText) { |
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for($i = 0, $size = count($colorsBase); $i < $size; $i++) { |
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$colorsBuild[] = $colorsBase[$i]; |
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if(count($colorsBuild) >= $strlenText) { continue 2; } |
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if($i < count($colorsBase)-1) { |
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$colorsBuild[] = holt45::colorBlend($colorsBase[$i], $colorsBase[$i+1]); |
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if(count($colorsBuild) >= $strlenText) { continue 2; } |
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} |
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} |
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$colorsBase = $colorsBuild; |
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$colorsBuild = array(); |
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} |
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} elseif($strlenText <= 7) { |
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$colorsBuild = $colorsBase; |
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} |
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$arrayText = str_split($text); |
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$returnText = ""; |
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for($i = 0, $size = count($arrayText); $i < $size; $i++) { |
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$returnText .= '<span style="color: #'.holt45::rgbhex($colorsBuild[$i]).';">'.$arrayText[$i].'</span>'; |
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} |
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return $returnText; |
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} |
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} |
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