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&& is breaking the page in WordPress

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星月不相逢
星月不相逢 2020-12-21 17:01

I added this to my WordPress page

if (script.readyState && script.onload!==null){
    script.onreadystatechange= function () {
        if (this.ready
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2条回答
  • 庸人自扰
    2020-12-21 17:41

    Another option is to make a shortcode. In this example, the shortcode will only be printed if it contains the attributes x and y, e.g.: [myscript x="10" y="20"]. I'm using a simple script that shows a JS alert dialog with the attributes values.

    add_shortcode( 'myscript', 'sample_shortcode_so_6195635' );

function sample_shortcode_so_6195635( $atts, $content = null )
{   
    if( isset( $atts['x'] ) && isset( $atts['y'] ) )
    {
        $x = $atts['x'];
        $y = $atts['y'];

        // See: http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc
        $html = <<<HTML
        <button onclick="myalert()">Show Shortcode Atts</button>

        <script type="text/javascript">
        function myalert()
        {
            if( $x < 10 && $y < 20 )
                alert( 'X less than 10 and Y less than 20' );
            else
                alert( 'other' );
        }
        </script>   
HTML;
        return $html;
    }
}
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  • 臣服心动
    2020-12-21 17:44

    You need to disable WP's autoformatting. WP will auto format even in the html editor, and the spaces and line breaks will break your javascript.

    Use this plugin http://wordpress.org/extend/plugins/wp-no-format/

    Update 4/08/2015: plugin is dated but still works for me.

    This also works: add the plugin directly to functions.php and bracket the your javascript in <!-- noformat on --> and <!-- noformat off --> tags

    Add to functions.php file:

    function newautop($text)
{
    $newtext = "";
    $pos = 0;

    $tags = array('<!-- noformat on -->', '<!-- noformat off -->');
    $status = 0;

    while (!(($newpos = strpos($text, $tags[$status], $pos)) === FALSE))
    {
        $sub = substr($text, $pos, $newpos-$pos);

        if ($status)
            $newtext .= $sub;
        else
            $newtext .= convert_chars(wptexturize(wpautop($sub)));      //Apply both functions (faster)

        $pos = $newpos+strlen($tags[$status]);

        $status = $status?0:1;
    }

    $sub = substr($text, $pos, strlen($text)-$pos);

    if ($status)
        $newtext .= $sub;
    else
        $newtext .= convert_chars(wptexturize(wpautop($sub)));      //Apply both functions (faster)

    //To remove the tags
    $newtext = str_replace($tags[0], "", $newtext);
    $newtext = str_replace($tags[1], "", $newtext);

    return $newtext;
}

function newtexturize($text)
{
    return $text;   
}

function new_convert_chars($text)
{
    return $text;   
}

remove_filter('the_content', 'wpautop');
add_filter('the_content', 'newautop');

remove_filter('the_content', 'wptexturize');
add_filter('the_content', 'newtexturize');

remove_filter('the_content', 'convert_chars');
add_filter('the_content', 'new_convert_chars');
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