[wp-trac] [WordPress Trac] #44212: Add a new helper function for comma- or space-separated lists

[WordPress Trac]

#44212: Add a new helper function for comma- or space-separated lists
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 Reporter:  keesiemeijer              |       Owner:  (none)
     Type:  defect (bug)              |      Status:  new
 Priority:  normal                    |   Milestone:  Awaiting Review
Component:  General                   |     Version:
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by subrataemfluence):

 Curious to know what if we just wrap the `$list` within a `trim()`
 function to clean it up frm any leading or trailing spaces before using
 `preg_split` on to it in the core functions since we already have
 is_array() guard around this.

 Like:

 {{{#!php
 <?php
 function wp_parse_id_list( $list ) {
    if ( ! is_array( $list ) ) {
       $list = preg_split( '/[\s,]+/', trim( $list ) );
    }

    return array_unique( array_map( 'absint', $list ) );
 }

 }}}

 and

 {{{#!php
 <?php
 function wp_parse_slug_list( $list ) {
    if ( ! is_array( $list ) ) {
       $list = preg_split( '/[\s,]+/', trim( $list ) );
    }

    foreach ( $list as $key => $value ) {
       $list[ $key ] = sanitize_title( $value );
    }

    return array_unique( $list );
 }
 }}}

 Do you think if could create any impact in other areas? Please correct me
 if I am wrong.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44212#comment:3>
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