RegexIterator::setMode

(PHP 5 >= 5.2.0, PHP 7)

RegexIterator::setMode — Sets the operation mode

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public RegexIterator::setMode ( int $mode ) : void

Sets the operation mode.

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mode

The operation mode.

The available modes are listed below. The actual meanings of these modes are described in the predefined constants.

RegexIterator modes
value constant
0 RegexIterator::MATCH
1 RegexIterator::GET_MATCH
2 RegexIterator::ALL_MATCHES
3 RegexIterator::SPLIT
4 RegexIterator::REPLACE

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Example #1 RegexIterator::setMode() example

<?php
$test = array ('str1' => 'test 1', 'test str2' => 'another test', 'str3' => 'test 123');

$arrayIterator = new ArrayIterator($test);
// Filter everything that starts with 'test ' followed by one or more numbers.
$regexIterator = new RegexIterator($arrayIterator, '/^test (\d+)/');
// Operation mode: Replace actual value with the matches
$regexIterator->setMode(RegexIterator::GET_MATCH);

foreach ($regexIterator as $key => $value) {
    // print out the matched number(s)
    echo $key . ' => ' . $value[1] . PHP_EOL;
}
?>

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str1 => 1
str3 => 123

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