PHP preg_replace_callback()

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PHP preg_replace_callback()

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$str = 'SELECT * FROM STUDENTS WHERE ID IN (?, ?, ?, ?, ?)';
$pattern = '/\?/';
$count = 5;
echo preg_replace_callback($pattern,
    function($match) use (&$count) {
        $count++;
        return $count;
    }, $str); # SELECT * FROM STUDENTS WHERE ID IN (6, 7, 8, 9, 10)

SELECT * FROM STUDENTS WHERE ID IN (6, 7, 8, 9, 10)

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PHP

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$str = 'SELECT * FROM STUDENTS WHERE NAME IN (?, ?, ?)';
$pattern = '/\?/';
$names = ['"John Smith"', '"Jane Doe"', '"Mike Barnes"'];
$temp_index = 0;
echo preg_replace_callback($pattern,
    function($match) use (&$temp_index, &$names) {
        return $names[$temp_index++];
    }, $str); # SELECT * FROM STUDENTS WHERE NAME IN ("John Smith", "Jane Doe", "Mike Barnes")

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• PHP preg_replace()