Cara Menukar Petikan Pintar dalam PHP: Panduan Komprehensif

Tukar Petikan Pintar dalam PHP: Panduan Komprehensif

Dalam PHP, mengendalikan petikan pintar boleh menjadi tugas yang rumit. Fungsi yang dipertingkatkan berikut memastikan penukaran menyeluruh bagi semua jenis petikan pintar kepada petikan biasa:

<code class="php">function convert_smart_quotes($string)
{
    $unicode_map = array(
        "\xC2\xAB"     => "'", // U+00AB left-pointing double angle quotation mark
        "\xC2\xBB"     => "'", // U+00BB right-pointing double angle quotation mark
        "\xE2\x80\x98" => "'", // U+2018 left single quotation mark
        "\xE2\x80\x99" => "'", // U+2019 right single quotation mark
        "\xE2\x80\x9A" => "'", // U+201A single low-9 quotation mark
        "\xE2\x80\x9B" => "'", // U+201B single high-reversed-9 quotation mark
        "\xE2\x80\x9C" => '"', // U+201C left double quotation mark
        "\xE2\x80\x9D" => '"', // U+201D right double quotation mark
        "\xE2\x80\x9E" => '"', // U+201E double low-9 quotation mark
        "\xE2\x80\x9F" => '"', // U+201F double high-reversed-9 quotation mark
        "\xE2\x80\xB9" => "'", // U+2039 single left-pointing angle quotation mark
        "\xE2\x80\xBA" => "'", // U+203A single right-pointing angle quotation mark

        // Windows codepage 1252
        "\xC2\x82" => "'", // U+0082⇒U+201A single low-9 quotation mark
        "\xC2\x84" => '"', // U+0084⇒U+201E double low-9 quotation mark
        "\xC2\x8B" => "'", // U+008B⇒U+2039 single left-pointing angle quotation mark
        "\xC2\x91" => "'", // U+0091⇒U+2018 left single quotation mark
        "\xC2\x92" => "'", // U+0092⇒U+2019 right single quotation mark
        "\xC2\x93" => '"', // U+0093⇒U+201C left double quotation mark
        "\xC2\x94" => '"', // U+0094⇒U+201D right double quotation mark
        "\xC2\x9B" => "'" // U+009B⇒U+203A single right-pointing angle quotation mark
    );

    // Map special HTML entities
    $html_entities = array(
        "&amp;#8216;" => "'", // left single quotation mark
        "&amp;#8217;" => "'", // right single quotation mark
        "&amp;#8220;" => '"', // left double quotation mark
        "&amp;#8221;" => '"' // right double quotation mark
    );

    // Map Windows CP1252 entities
    $windows_cp1252 = array(
        "&amp;lsquo;" => "'", // left single quotation mark
        "&amp;rsquo;" => "'", // right single quotation mark
        "&amp;ldquo;" => '"', // left double quotation mark
        "&amp;rdquo;" => '"', // right double quotation mark
        "&amp;mdash;" => ' - ', // em dash
        "&amp;ndash;" => '- ' // en dash
    );

    // Unicode first
    $string = str_replace(
        array_keys  ($unicode_map),
        array_values($unicode_map),
        html_entity_decode($string, ENT_QUOTES, "UTF-8")
    );

    // Windows CP1252 next
    $string = str_replace(
        array_keys  ($windows_cp1252),
        array_values($windows_cp1252),
        $string
    );

    // Finally, HTML entities
    $string = str_replace(
        array_keys  ($html_entities),
        array_values($html_entities),
        $string
    );

    return $string;
}</code>

Fungsi ini mengendalikan semua piawaian Unikod, halaman kod Windows 1252 dan entiti HTML untuk petikan pintar. Ia memastikan bahawa semua jenis petikan pintar ditukar dengan tepat kepada petikan biasa, memberikan penyelesaian komprehensif untuk penukaran petikan dalam PHP.

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