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WordPress – Rewrite quotes to <q> elements

I would like to rewrite quotes characters into the HTML element <q>.

❌ "Hello world", George said.

✅ <q>Hello world</q>, George said.

The text was written in the WordPress editor and will be displayed in the frontend via the_content(). In the editor, everything can stay as it is. The output of the quotes should only be changed in the frontend.

My approach is to use a filter to replace the quotes. However, I don’t know how to distinguish between opening and closing quotes.

function quote_filter( $content ) {
  $content = preg_replace( ??? );

  return $content;
}

add_filter( 'the_content', 'quote_filter' );

Do you have any ideas on how to solve this properly?

Tags:

4

Answers


  1. 0

    I’ll use a for loop, alternating between the opening and closing tag when I reconstruct the string.

    <?php
function quote_filter($content)
{
  $arr = explode('"', $content);
  $brr = [];
  for ($i = 0; $i < count($arr); $i++) {
    $brr[] = $arr[$i];
    if ($i < count($arr) - 1) {
      $brr[] = $i % 2 == 0 ? '<q>' : '</q>';
    }
  }

  return implode("", $brr);
}


$content = 'hello "world" how "are" you?';
echo quote_filter($content);

    BTW, AI would probably say:

    <?php
function quote_filter($content)
{
  $content = preg_replace_callback('/"([^"]*)"/', function ($matches) {
    return '<q>' . $matches[1] . '</q>';
  }, $content);

  return $content;
}
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  2. 0

    You could solve your direct problem as follows:

    $output = "";
for ($index = 0; $index < strlen($input); $index++) {
    $open = true;
    switch ($input[$index]) {
        case $myChar: {
            $output .= ($open ? $prefix : $suffix);
            $open = !$open;
        } break;
        default: $output .= $input[$index];
    }
}

    Of course you can make a function of it and vary what $myChar, $prefix and $suffix are, potentially adding styling, using other tags or other separators, as you wish.

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  3. 0

    Try this

     function quote_filter( $content ) {
        $inQuote = false;
        $callback = function($matches) use (&$inQuote) {
            if ($inQuote) {
                $inQuote = false;
                return '</q>';
            } else {
                $inQuote = true;
                return '<q>';
            }
        };
            $content = preg_replace_callback('/"/', $callback, $content);
        return $content;
    }
    add_filter( 'the_content', 'quote_filter' );
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  4. 0

    I have tried this code. It must work for you.

    <?php

function quote_filter($content)
{
    $is_open = false;
    $content = preg_replace_callback('/"([^"]*)"/', function ($matches) use (&$is_open) {
        if (!$is_open) {
            $is_open = true;
            return '<q>' . $matches[1] . '</q>';
        } else {
            $is_open = false;
            return '<q>' . $matches[1] . '</q>';
        }
    }, $content);

    return $content;
}

add_filter('the_content', 'quote_filter');

    Please let me know if any another query.

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