protected function getEligibleKeys(array $strings)
	{
		$eligibleKeys = [];
		foreach ($strings as $k => $string)
		{
			if (!is_array($string[0]) && isset($string[1]))
			{
				$suffix = serialize(array_slice($string, 1));
				$eligibleKeys[$suffix][] = $k;
			}
		}

		return $this->filterEligibleKeys($eligibleKeys);
	}
protected function getEligibleKeys(array $strings)
	{
		$eligibleKeys = [];
		foreach ($strings as $k => $string)
		{
			if (!is_array($string[0]) && isset($string[1]))
			{
				$suffix = serialize(array_slice($string, 1));
				$eligibleKeys[$suffix][] = $k;
			}
		}

		return $this->filterEligibleKeys($eligibleKeys);
	}
protected function getEligibleKeys ( array $ strings ) { $ eligibleKeys = [ ] ; foreach ( $ strings as $ k => $ string ) { if ( ! is_array ( $ string [ 0 ] ) && isset ( $ string [ 1 ] ) ) { $ suffix = serialize ( array_slice ( $ string , 1 ) ) ; $ eligibleKeys [ $ suffix ] [ ] = $ k ; } } return $ this -> filterEligibleKeys ( $ eligibleKeys ) ; }
Get a list of keys of strings eligible to be merged together, grouped by suffix

@param  array[] $strings
@return array[]
Get a list of keys of strings eligible to be merged together grouped by suffix