php 한글 메뉴얼 도움말 검색 사이트 Escape a string for query [function.pg-escape-string]

설명

string pg_escape_string ([ resource $connection ], string $data )

pg_escape_string() escapes a string for querying the database. It returns an escaped string in the PostgreSQL format without quotes. pg_escape_literal() is more preferred way to escape SQL parameters for PostgreSQL. addslashes() must not be used with PostgreSQL. If the type of the column is bytea, pg_escape_bytea() must be used instead. pg_escape_identifier() must be used to escape identifiers (e.g. table names, field names)

Note:
This function requires PostgreSQL 7.2 or later.

인수

connection: PostgreSQL database connection resource. When connection is not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().
data: A string containing text to be escaped.

반환값

A string containing the escaped data.

변경점

버전	설명
5.2.0	`connection` added

예제

Example #1 pg_escape_string() example


<?php 
  // Connect to the database
  $dbconn = pg_connect('dbname=foo');
  
  // Read in a text file (containing apostrophes and backslashes)
  $data = file_get_contents('letter.txt');
  
  // Escape the text data
  $escaped = pg_escape_string($data);
  
  // Insert it into the database
  pg_query("INSERT INTO correspondence (name, data) VALUES ('My letter', '{$escaped}')");
?>

참고

pg_escape_bytea() - Escape a string for insertion into a bytea field