(PHP 5 >= 5.1.0, PHP 7)
FilterIterator::accept — Check whether the current element of the iterator is acceptable
Returns whether the current element of the iterator is acceptable through this filter.
此函数没有参数。
TRUE if the current element is acceptable, otherwise FALSE.
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