PHP 8.1.31 Released!

    str_repeat

    (PHP 4, PHP 5, PHP 7, PHP 8)

    str_repeat — Repeat a string

    Description

    str_repeat(string $string, int $times): string

    Returns string repeated times times.

    Parameters

    string

    The string to be repeated.

    times

    Number of time the string string should be repeated.

    times has to be greater than or equal to 0. If the times is set to 0, the function will return an empty string.

    Return Values

    Returns the repeated string.

    Examples

    Example #1 str_repeat() example

    <?php
    echo str_repeat("-=", 10);
    ?>

    The above example will output:

    -=-=-=-=-=-=-=-=-=-=

    See Also

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 4 notes

    up
    42
    Damien Bezborodov
    15 years ago
    Here is a simple one liner to repeat a string multiple times with a separator:

    <?php
    implode    ($separator, array_fill(0, $multiplier, $input));
    ?>

    Example script:
    <?php

    // How I like to repeat a string using standard PHP functions
    $input = 'bar';
    $multiplier = 5;
    $separator = ',';
    print     implode($separator, array_fill(0, $multiplier, $input));
    print     "\n";

    // Say, this comes in handy with count() on an array that we want to use in an
    // SQL query such as 'WHERE foo IN (...)'
    $args = array('1', '2', '3');
    print     implode(',', array_fill(0, count($args), '?'));
    print     "\n";
    ?>

    Example Output:
    bar,bar,bar,bar,bar
    ?,?,?
    up
    5
    Alexander Ovsiyenko
    6 years ago
    http://php.net/manual/en/function.str-repeat.php#90555

    Damien Bezborodov , yeah but execution time of your solution is 3-5 times worse than str_replace.

    <?php

    function spam($number) {
    return     str_repeat('test', $number);
    }

    function     spam2($number) {
    return     implode('', array_fill(0, $number, 'test'));
    }

    //echo spam(4);
    $before = microtime(true);
    for (    $i = 0; $i < 100000; $i++) {
    spam(10);
    }
    echo     microtime(true) - $before , "\n"; // 0.010297
    $before = microtime(true);
    for (    $i = 0; $i < 100000; $i++) {
    spam2(10);
    }
    echo     microtime(true) - $before; // 0.032104
    up
    0
    claude dot pache at gmail dot com
    15 years ago
    Here is a shorter version of Kees van Dieren's function below, which is moreover compatible with the syntax of str_repeat:

    <?php
    function str_repeat_extended($input, $multiplier, $separator='')
    {
    return     $multiplier==0 ? '' : str_repeat($input.$separator, $multiplier-1).$input;
    }
    ?>
    up
    -1
    Anonymous
    13 years ago
    hi guys ,
    i've faced this example :
    <?php

    $my_head     = str_repeat("°~", 35);
    echo     $my_head;

    ?>

    so , the length should be 35x2 = 70 !!!
    if we echo it :

    <?php
    $my_head     = str_repeat("°~", 35);
    echo     strlen($my_head); // 105
    echo mb_strlen($my_head, 'UTF-8'); // 70
    ?>

    be carefull with characters and try to use mb_* package to make sure everything goes well ...
    ＋add a note
    To Top