ITERATOR_APPLY(3) 1 ITERATOR_APPLY(3)
iterator_apply - Call a function for every element in an iterator
SYNOPSIS
int iterator_apply (Traversable $iterator, callable $function, [array $args])
DESCRIPTION
Calls a function for every element in an iterator.
PARAMETERS
o $iterator
- The class to iterate over.
o $function
- The callback function to call on every element.
Note
The function must return TRUE in order to continue iterating over the $iterator.
o $args
- Arguments to pass to the callback function.
RETURN VALUES
Returns the iteration count.
EXAMPLES
Example #1
iterator_apply(3) example
<?php
function print_caps(Iterator $iterator) {
echo strtoupper($iterator->current()) . "
";
return TRUE;
}
$it = new ArrayIterator(array("Apples", "Bananas", "Cherries"));
iterator_apply($it, "print_caps", array($it));
?>
The above example will output:
APPLES
BANANAS
CHERRIES
SEE ALSO
array_walk(3).
PHP Documentation Group ITERATOR_APPLY(3)
