(PHP 5 >= 5.5.0, PHP 7)
Get the yielded key
public mixed Generator::key ( void )
Gets the key of the yielded value.
Returns:
Returns the yielded key.
Examples:
Generator::key() example
1 2 3 4 5 6 7 8 9 10 | <?php function Gen() { yield 'key' => 'value' ; } $gen = Gen(); echo "{$gen->key()} => {$gen->current()}" ; |
The above example will output:
key => value
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