PHPerKaigi 2025

    stripslashes

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

    stripslashes — Quita las barras de un string con comillas escapadas

    Descripción

    stripslashes(string $str): string

    Quita las barras de un string con comillas escapadas.

    stripslashes() se puede utilizar si no está insertando estos datos en un lugar (como una base de datos) que requiere escapar. Por ejemplo, si simplemente está imprimiendo datos directamente desde un formulario HTML.

    Parámetros

    str

    El string de entrada.

    Valores devueltos

    Devuelve un string con las barras invertidas retiradas. (\' se convierte en ' y así sucesivamente.) Barras invertidas dobles (\\) se convierten en una sencilla (\).

    Ejemplos

    Ejemplo #1 Un ejemplo de stripslashes()

    <?php
    $str     = "Is your name O\'reilly?";

    // Salida: Is your name O'reilly?
    echo stripslashes($str);
    ?>

    Nota:

    stripslashes() no es recursiva. Si se desea aplicar esta función a un array multi-dimensional, se necesita utilizar una función recursiva.

    Ejemplo #2 Utilizando stripslashes() en un array

    <?php
    function stripslashes_deep($value)
    {
    $value = is_array($value) ?
    array_map('stripslashes_deep', $value) :
    stripslashes($value);

    return     $value;
    }

    // Ejemplo
    $array = array("f\\'oo", "b\\'ar", array("fo\\'o", "b\\'ar"));
    $array = stripslashes_deep($array);

    // Salida
    print_r($array);
    ?>

    El resultado del ejemplo sería:

    Array
(
    [0] => f'oo
    [1] => b'ar
    [2] => Array
        (
            [0] => fo'o
            [1] => b'ar
        )

)

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    User Contributed Notes 6 notes

    up
    71
    ivijan dot stefan at gmail dot com
    10 years ago
    Sometimes for some reason is happens that PHP or Javascript or some naughty insert a lot of backslash. Ordinary function does not notice that. Therefore, it is necessary that the bit "inflate":

    <?php
    function removeslashes($string)
    {
    $string=implode("",explode("\\",$string));
    return     stripslashes(trim($string));
    }

    /* Example */

    $text="My dog don\\\\\\\\\\\\\\\\'t like the postman!";
    echo     removeslashes($text);
    ?>

    RESULT: My dog don't like the postman!

    This flick has served me wery well, because I had this problem before.
    up
    6
    shredder at technodrome dot com
    15 years ago
    Hi,

    Here are recursive addslashes / stripslashes functions.
    given a string - it will simply add / strip slashes
    given an array - it will recursively add / strip slashes from the array and all of it subarrays.
    if the value is not a string or array - it will remain unmodified!

    <?php

    function add_slashes_recursive( $variable )
    {
    if (     is_string( $variable ) )
    return     addslashes( $variable ) ;

    elseif (     is_array( $variable ) )
    foreach(     $variable as $i => $value )
    $variable[ $i ] = add_slashes_recursive( $value ) ;

    return     $variable ;
    }

    function     strip_slashes_recursive( $variable )
    {
    if (     is_string( $variable ) )
    return     stripslashes( $variable ) ;
    if (     is_array( $variable ) )
    foreach(     $variable as $i => $value )
    $variable[ $i ] = strip_slashes_recursive( $value ) ;

    return     $variable ;
    }

    ?>
    up
    1
    Tom Worster
    15 years ago
    A replacement that should be safe on utf-8 strings.
    <?php
    preg_replace    (array('/\x5C(?!\x5C)/u', '/\x5C\x5C/u'), array('','\\'), $s);
    ?>
    up
    2
    o-zone at zerozone dot it
    15 years ago
    If you need to remove all slashes from a string, here's a quick hack:

    <?php
    function stripallslashes($string) {
    while(    strchr($string,'\\')) {
    $string = stripslashes($string);
    }
    }
    ?>

    Hope it's usefull , O-Zone
    up
    1
    stoic
    18 years ago
    in response to crab dot crab at gmail dot com:

    $value need not be passed by reference. The 'stripped' value is returned. The passed value is not altered.
    up
    1
    hash at samurai dot fm
    21 years ago
    Might I warn readers that they should be vary careful with the use of stripslashes on Japanese text. The shift_jis character set includes a number of two-byte code charcters that contain the hex-value 0x5c (backslash) which will get stripped by this function thus garbling those characters.

    What a nightmare!
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