Syntax: toString ([separator [, selector]])
public toString ( string $separator = '', callable | null $valueSelector = null ) : string | ||
$separator | string | A string separating values in the result string. Default: ''. |
$valueSelector | callable | null | {(v, k) ==> value} A transform function to apply to each element. Default: value. |
Результат | string |
public function toString($separator = '', $valueSelector = null)
{
$valueSelector = Utils::createLambda($valueSelector, 'v,k', false);
$array = $valueSelector ? $this->select($valueSelector)->toList() : $this->toList();
return implode($separator, $array);
}