PHP 7.1.18 Released

RecursiveRegexIterator::getChildren

(PHP 5 >= 5.2.0, PHP 7)

RecursiveRegexIterator::getChildrenReturns an iterator for the current entry

说明

public RecursiveRegexIterator RecursiveRegexIterator::getChildren ( void )

Returns an iterator for the current iterator entry.

参数

此函数没有参数。

返回值

An iterator for the current entry, if it can be iterated over by the inner iterator.

错误/异常

An InvalidArgumentException will be thrown if the current entry does not contain a value that can be iterated over by the inner iterator.

范例

Example #1 RecursiveRegexIterator::getChildren() example

<?php
$rArrayIterator 
= new RecursiveArrayIterator(array('test1', array('tet3''test4''test5')));
$rRegexIterator = new RecursiveRegexIterator($rArrayIterator'/^test/',
    
RecursiveRegexIterator::ALL_MATCHES);

foreach (
$rRegexIterator as $key1 => $value1) {

    if (
$rRegexIterator->hasChildren()) {

        
// print all children
        
echo "Children: ";
        foreach (
$rRegexIterator->getChildren() as $key => $value) {
            echo 
$value " ";
        }
        echo 
"\n";
    } else {
        echo 
"No children\n";
    }

}
?>

以上例程会输出:

No children
Children: test4 test5

参见

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