Fix PHP warning when password_hosts is set, but is not an array (#5260)

Aleksander Machniak

2016-05-20 ab6fdfa8bc3a441590778b026b52225473424eec

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<?php
 
// Enable emoticons in plain text messages preview
$config['emoticons_display'] = false;
 
// Enable emoticons in compose editor (HTML)
$config['emoticons_compose'] = true;