[wp-trac] [WordPress Trac] #54827: Elemtentor, pagina

[WordPress Trac]

#54827: Elemtentor, pagina
----------------------------+---------------------
 Reporter:  flashprice2020  |       Owner:  (none)
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  6.0
Component:  Formatting      |     Version:
 Severity:  normal          |  Resolution:
 Keywords:                  |     Focuses:
----------------------------+---------------------
Changes (by costdev):

 * keywords:  needs-design =>
 * type:  feature request => defect (bug)
 * component:  Plugins => Formatting
 * severity:  critical => normal
 * milestone:  Awaiting Review => 6.0


Comment:

 This is caused by the following line:

 {{{#!php
 <?php
 if ( count( $matches ) == 0 ) {
 }}}

 `$matches` assumes an array comes from `preg_replace_callback`.

 However, `preg_replace_callback` may return `null`. See
 [https://www.php.net/manual/en/function.preg-replace-callback.php
 preg_replace_callback].

 A guard is needed to return an empty string if `$matches` is `null`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54827#comment:1>
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