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(PHP 4 >= 4.3.0, PHP 5 <= 5.0.5, PECL dbx >= 1.1.0)
dbx_escape_string — Escape a string so it can safely be used in an sql-statement
$link_identifier 
   ,  string $text 
   )Escape the given string so that it can safely be used in an sql-statement.
link_identifier The DBX link object returned by dbx_connect()
text The string to escape.
   Returns the text, escaped where necessary (such as quotes, backslashes
   etc). On error,  NULL  is returned.
  
Example #1 dbx_escape_string() example
  <?php
$link    =  dbx_connect ( DBX_MYSQL ,  "localhost" ,  "db" ,  "username" ,  "password" )
    or die( "Could not connect" );
 $text  =  dbx_escape_string ( $link ,  "It\'s quoted and backslashed (\\)." );
 $result  =  dbx_query ( $link ,  "insert into tbl (txt) values ('"  .  $text  .  "')" );
if ( $result  ==  0 ) {
    echo  dbx_error ( $link );
}
 dbx_close ( $link );
 ?>