public static function Inspector::assertTraversable in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Component/Assertion/Inspector.php \Drupal\Component\Assertion\Inspector::assertTraversable()

Asserts argument can be traversed with foreach.

Parameters

mixed $traversable: Variable to be examined.

Return value

bool TRUE if $traversable can be traversed with foreach.

8 calls to Inspector::assertTraversable()

Inspector::assertAll in core/lib/Drupal/Component/Assertion/Inspector.php

Asserts callback returns TRUE for each member of a traversable.

Inspector::assertAllHaveKey in core/lib/Drupal/Component/Assertion/Inspector.php

Asserts all given keys exist in every member array.

Inspector::assertAllMatch in core/lib/Drupal/Component/Assertion/Inspector.php

Asserts that all members are strings that contain the specified string.

Inspector::assertAllNotEmpty in core/lib/Drupal/Component/Assertion/Inspector.php

Asserts that all members are not empty.

Inspector::assertAllObjects in core/lib/Drupal/Component/Assertion/Inspector.php

Asserts that all members are objects.

... See full list

File

core/lib/Drupal/Component/Assertion/Inspector.php, line 30

Class

Inspector

Generic inspections for the assert() statement.

Namespace

Drupal\Component\Assertion

Code

public static function assertTraversable($traversable) {
  return is_array($traversable) || $traversable instanceof \Traversable;
}