# db2_escape_string

(PECL ibm_db2 >= 1.6.0)

db2_escape_string — Used to escape certain characters

### 说明

db2_escape_string ( string `$string_literal` ) : string

Prepends backslashes to special characters in the string argument.

### 参数

`string_literal`

  The string that contains special characters that need to be modified. Characters that are prepended with a backslash are \x00, \n, \r, \, ', " and \x1a.

### 返回值

Returns `string_literal` with the special characters noted above prepended with backslashes.

### 范例

Example #1 A db2_escape_string() example

Result of using the db2_escape_string() function

    <?php

    $conn = db2_connect($database, $user, $password);

    if ($conn) {
        $str[0] = "All characters: \x00 , \n , \r , \ , ' , \" , \x1a .";
        $str[1] = "Backslash (\). Single quote ('). Double quote (\")";
        $str[2] = "The NULL character \0 must be quoted as well";
        $str[3] = "Intersting characters: \x1a , \x00 .";
        $str[4] = "Nothing to quote";
        $str[5] = 200676;
        $str[6] = "";

        foreach( $str as $string ) {
            echo "db2_escape_string: " . db2_escape_string($string). "\n";
        }
    }
    ?>

以上例程会输出：

    db2_escape_string: All characters: \0 , \n , \r , \\ , \' , \" , \Z .
    db2_escape_string: Backslash (\\). Single quote (\'). Double quote (\")
    db2_escape_string: The NULL character \0 must be quoted as well
    db2_escape_string: Intersting characters: \Z , \0 .
    db2_escape_string: Nothing to quote
    db2_escape_string: 200676
    db2_escape_string:

### 参见

- db2_prepare() - Prepares an SQL statement to be executed