使用php将特殊字符转换为HTML代码 - convert special characters to html code with php

我需要一个函数来清理字符串的特殊字符。我做不是希望这个转换HTML字符像<br />来<br />

我想把像:•，½，'这样的东西转换成html代码。

这是我目前使用的函数，但它似乎不与分数工作…

function cleanText($str){
$str = str_replace("Ñ" ,"&#209;", $str);
$str = str_replace("ñ" ,"&#241;", $str);
$str = str_replace("ñ" ,"&#241;", $str);
$str = str_replace("Á","&#193;", $str);
$str = str_replace("á","&#225;", $str);
$str = str_replace("É","&#201;", $str);
$str = str_replace("é","&#233;", $str);
$str = str_replace("ú","&#250;", $str);
$str = str_replace("ù","&#249;", $str);
$str = str_replace("Í","&#205;", $str);
$str = str_replace("í","&#237;", $str);
$str = str_replace("Ó","&#211;", $str);
$str = str_replace("ó","&#243;", $str);
$str = str_replace("“","&#8220;", $str);
$str = str_replace("”","&#8221;", $str);
$str = str_replace("‘","&#8216;", $str);
$str = str_replace("’","&#8217;", $str);
$str = str_replace("—","&#8212;", $str);
$str = str_replace("–","&#8211;", $str);
$str = str_replace("™","&trade;", $str);
$str = str_replace("ü","&#252;", $str);
$str = str_replace("Ü","&#220;", $str);
$str = str_replace("Ê","&#202;", $str);
$str = str_replace("ê","&#238;", $str);
$str = str_replace("Ç","&#199;", $str);
$str = str_replace("ç","&#231;", $str);
$str = str_replace("È","&#200;", $str);
$str = str_replace("è","&#232;", $str);
$str = str_replace("•","&#149;" , $str);
$str = str_replace("¼","&#188;" , $str);
$str = str_replace("½","&#189;" , $str);
$str = str_replace("¾","&#190;" , $str);
$str = str_replace("½","&#189;" , $str);
return $str;
}

您可以使用ENT_SUBSTITUTE属性将整个函数替换为htmlentities。它将执行得更快，除了工作正确。

注意: ENT_SUBSTITUTE可用的PHP 5.4。

我想是时候看看htmlentities PHP函数和它的选项了。

基本上，您可以将整个函数替换为:

$str = htmlentities( $str );

它也会更有效率。

如果需要特殊处理(特别是ENT_SUBSTITUTE)，请务必查看函数的可选参数。

$str = htmlentities( $str, ENT_SUBSTITUTE );

试试这个，我已经使用这个函数将任何/所有内容转换为unicode:

class unicode_replace_entities {
public function UTF8entities($content="") {
    $contents = $this->unicode_string_to_array($content);
    $swap = "";
    $iCount = count($contents);
    for ($o=0;$o<$iCount;$o++) {
        $contents[$o] = $this->unicode_entity_replace($contents[$o]);
        $swap .= $contents[$o];
    }
    return mb_convert_encoding($swap, "UTF-8"); //not really necessary, but why not.
}
public function unicode_string_to_array( $string ) { //adjwilli
    $strlen = mb_strlen($string);
    while ($strlen) {
        $array[] = mb_substr( $string, 0, 1, "UTF-8" );
        $string = mb_substr( $string, 1, $strlen, "UTF-8" );
        $strlen = mb_strlen( $string );
    }
    return $array;
}
public function unicode_entity_replace($c) { //m. perez
    $h = ord($c{0});
    if ($h <= 0x7F) {
        return $c;
    } else if ($h < 0xC2) {
            return $c;
        }
    if ($h <= 0xDF) {
        $h = ($h & 0x1F) << 6 | (ord($c{1}) & 0x3F);
        $h = "&#" . $h . ";";
        return $h;
    } else if ($h <= 0xEF) {
            $h = ($h & 0x0F) << 12 | (ord($c{1}) & 0x3F) << 6 | (ord($c{2}) & 0x3F);
            $h = "&#" . $h . ";";
            return $h;
        } else if ($h <= 0xF4) {
            $h = ($h & 0x0F) << 18 | (ord($c{1}) & 0x3F) << 12 | (ord($c{2}) & 0x3F) << 6 | (ord($c{3}) & 0x3F);
            $h = "&#" . $h . ";";
            return $h;
        }
}
}
$oUnicodeReplace = new unicode_replace_entities();
$oUnicodeReplace->UTF8entities($string);

请注意，它会转换所有内容，但它会照顾奇怪的字符，否则…不是我自己的脚本，但我不知道我在哪里找到它

是:http://www.php.net/manual/en/function.htmlentities.php或者这样:http://www.php.net/manual/en/function.htmlspecialchars.php