Field::hasString($string[,$string,...])

Version 2018.3

Check if field has a given value

Return TRUE if given string is found in value.

Return value

Bool

Arguments

$string
Text used as needle.

Full documentation

Add text, if additional info containts string 'Confirm delivery':

if ( $Order->additional_info->hasString('Confirm delivery') ){
    // Contact customer before delivery,
}