preg_replace_callback_array

    (PHP 7, PHP 8)

    preg_replace_callback_array — Perform a regular expression search and replace using callbacks

    Descrição

    preg_replace_callback_array(
        array$pattern,
        string|array$subject,
        int$limit = -1,
        int&$count = null,
        int$flags = 0
    ): string|array|null

    The behavior of this function is similar to preg_replace_callback(), except that callbacks are executed on a per-pattern basis.

    Parâmetros

    pattern

    An associative array mapping patterns (keys) to callables (values).

    subject

    The string or an array with strings to search and replace.

    limit

    The maximum possible replacements for each pattern in each subject string. Defaults to -1 (no limit).

    count

    If specified, this variable will be filled with the number of replacements done.

    flags

    flags can be a combination of the PREG_OFFSET_CAPTURE and PREG_UNMATCHED_AS_NULL flags, which influence the format of the matches array. See the description in preg_match() for more details.

    Valor Retornado

    preg_replace_callback_array() returns an array if the subject parameter is an array, or a string otherwise. On errors the return value is null

    If matches are found, the new subject will be returned, otherwise subject will be returned unchanged.

    Erros/Exceções

    Se o padrão de expressão regular passado não for compilado para uma expressão regular válida, um E_WARNING será emitido.

    Registro de Alterações

    VersãoDescrição
    7.4.0 The flags parameter was added.

    Exemplos

    Exemplo #1 preg_replace_callback_array() example

    <?php
    $subject     = 'Aaaaaa Bbb';

    preg_replace_callback_array(
    [
    '~[a]+~i' => function ($match) {
    echo     strlen($match[0]), ' matches for "a" found', PHP_EOL;
    },
    '~[b]+~i' => function ($match) {
    echo     strlen($match[0]), ' matches for "b" found', PHP_EOL;
    }
    ],
    $subject
    );
    ?>

    O exemplo acima produzirá:

    6 matches for "a" found 3 matches for "b" found

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