concrete/src/Utility/Service/Validation/Arrays.php
public function containsString($needle, $haystack = array(), $recurse = true)
    {
        /** @var \Concrete\Core\Utility\Service\Validation\Strings $stringHelper */
        $stringHelper = Core::make('helper/validation/strings');
        if (!$stringHelper->notempty($needle)) {
            return false;
        }
        $arr = (!is_array($haystack)) ? array($haystack) : $haystack; // turn the string into an array
        foreach ($arr as $item) {
            if ($stringHelper->notempty($item) && strstr($item, $needle) !== false) {
                return true;
            } elseif ($recurse && is_array($item) && $this->containsString($needle, $item)) {
                return true;
            }
        }

        return false;
    }
public function containsString($needle, $haystack = array(), $recurse = true)
    {
        /** @var \Concrete\Core\Utility\Service\Validation\Strings $stringHelper */
        $stringHelper = Core::make('helper/validation/strings');
        if (!$stringHelper->notempty($needle)) {
            return false;
        }
        $arr = (!is_array($haystack)) ? array($haystack) : $haystack; // turn the string into an array
        foreach ($arr as $item) {
            if ($stringHelper->notempty($item) && strstr($item, $needle) !== false) {
                return true;
            } elseif ($recurse && is_array($item) && $this->containsString($needle, $item)) {
                return true;
            }
        }

        return false;
    }
public function containsString ( $ needle , $ haystack = array ( ) , $ recurse = true ) { /** @var \Concrete\Core\Utility\Service\Validation\Strings $stringHelper */ $ stringHelper = Core :: make ( 'helper/validation/strings' ) ; if ( ! $ stringHelper -> notempty ( $ needle ) ) { return false ; } $ arr = ( ! is_array ( $ haystack ) ) ? array ( $ haystack ) : $ haystack ; // turn the string into an array foreach ( $ arr as $ item ) { if ( $ stringHelper -> notempty ( $ item ) && strstr ( $ item , $ needle ) !== false ) { return true ; } elseif ( $ recurse && is_array ( $ item ) && $ this -> containsString ( $ needle , $ item ) ) { return true ; } } return false ; }
Returns true if any string in the "haystack" contains the "needle".

@param string $needle The string to search for
@param string|array $haystack An array of strings to be searched (Can also contain sub arrays)
@param bool $recurse Defaults to true, when enabled this function will check any arrays inside the haystack for
a containing value when false it will only check the first level

@return bool
Returns true if any string in the haystack contains the needle .