数组：使用preg_replace和排序过滤[PHP - WordPress]

Question

I have a list of categories that are made up of multiple recurring (italian) words, like this:

• racconti sulla vita
• racconti di passione
• racconti sui pensieri
• racconti motivazionali
• ...

What I need to do is remove from the list all the recurring words (racconti, sulla, di, sui, sul, etc.) and then order the rest from A to Z.

The result is really weird: the total number of categories is 42 and I get the first 31 results in the right order (in this case from B to V). From 32nd item, the list starts again in the right order (from A to S).

It's like if the list was split in 2 parts.

This is my code:

$terms_tipologia = get_terms( 'tipologia', array( 'hide_empty' => true ) );

foreach ( $terms_tipologia as $tipologia ) :

    $words = array("racconti", "sul", "sull'", "sulla", "sulle", "sullo", "sui", "di");
    $pattern = '/\b(?:' . join('|', $words) . ')\b/i';

    $term_name = preg_replace($pattern, '', $tipologia->name);
    $term_link = get_term_link($tipologia);

    $reorder[$term_link] = $term_name;

endforeach;

asort($reorder);

foreach ( $reorder as $link => $nome ) :

    echo '<li><a href="'.esc_url( $link ).'">' . $nome . '</a></li>';

endforeach;

Answer 1

i think your issue come from space before/after removed word.

here sample than should work :

$terms_tipologia = [
    'racconti sulla vita',
    'racconti di passione',
    'sulle amotivazionali',
     'boem sulle ',
    'racconti sui pensieri',
    'racconti motivazionali'
];

$words = ["racconti", "sul", "sull'", "sulla", "sulle", "sullo", "sui", "di"];
//You should not rebuild on each loop iteration your pattern, i have also add optional space on regex.
$pattern = '/\b\s*(?:' . join('|', $words) . ')\s*\b/i';
$reorder = [];
foreach ( $terms_tipologia as $tipologia ) {

    $term_name = preg_replace($pattern, '', $tipologia);
    $reorder[] = trim($term_name); // I remove useless space.
}

asort($reorder);

var_dump($reorder);

You can see online example : http://sandbox.onlinephpfunctions.com/code/21a4c4beb156e2a4904f4a913a9b60334496d2d7