PHP：如何从键中带有连字符/破折号的关联数组中提取（）值？

Question

I'm referring to this question . Is it possible to extract() values from an associative array with hyphens/dashes in their keys by now ?

It's about an older version of the WordPress Shortcode API . Example:

function bartag_func( $atts ) {
    extract( shortcode_atts( array(
        'foo-bar' => 'something'
    ), $atts ) );

    return "foo = ${foo-bar}";
}
add_shortcode( 'bartag', 'bartag_func' );

Answer 1

It is still not possible . However, for the PHP.net engine, I have an RFC under discussion that would make it possible in PHP 8.

Answer 2

shortcode_atts returns an array so just use it.

function bartag_func( $atts ) {
    $params = shortcode_atts( array(
        'foo-bar' => 'something'
    ), $atts ) );

    return "foo = " . $params['foo-bar'];
}
add_shortcode( 'bartag', 'bartag_func' );