FilterIterator::accept
(PHP 5 >= 5.1.0, PHP 7)
FilterIterator::accept — Check whether the current element of the iterator is acceptable
说明
public
abstract
FilterIterator::accept
( void
) : bool
Returns whether the current element of the iterator is acceptable through this filter.
参数
此函数没有参数。
返回值
TRUE if the current element is acceptable, otherwise FALSE.
范例
Example #1 FilterIterator::accept() example
<?php
// This iterator filters all values with less than 10 characters
class LengthFilterIterator extends FilterIterator {
public function accept() {
// Only accept strings with a length of 10 and greater
return strlen(parent::current()) >= 10;
}
}
$arrayIterator = new ArrayIterator(array('test1', 'more than 10 characters'));
$lengthFilter = new LengthFilterIterator($arrayIterator);
foreach ($lengthFilter as $value) {
echo $value . "\n";
}
?>
以上例程会输出：
more than 10 characters