Forgot Password ??

PHP , ASP , ASP.NET, VB.NET, C#, Java , jQuery , Android , iOS , Windows Phone

	Registered : 109,036

HOME > PHP Manual > pg_escape_bytea - Escape a string for insertion into a bytea field

ลองใช้ค้นหาข้อมูล

pg_escape_bytea

(PHP 4 >= 4.2.0, PHP 5)

pg_escape_bytea — Escape a string for insertion into a bytea field

Description

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

pg_escape_bytea() escapes string for bytea datatype. It returns escaped string.

Note: When you SELECT a bytea type, PostgreSQL returns octal byte values prefixed with '\' (e.g. \032). Users are supposed to convert back to binary format manually.
This function requires PostgreSQL 7.2 or later. With PostgreSQL 7.2.0 and 7.2.1, bytea values must be cast when you enable multi-byte support. i.e. INSERT INTO test_table (image) VALUES ('$image_escaped'::bytea); PostgreSQL 7.2.2 or later does not need a cast. The exception is when the client and backend character encoding does not match, and there may be multi-byte stream error. User must then cast to bytea to avoid this error.

Parameters

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 or binary data to be inserted into a bytea column.

Return Values

A string containing the escaped data.

ChangeLog

Version Description

5.2.0 connection added

Examples

Example #1 pg_escape_bytea() example


<?php 
  // Connect to the database
  $dbconn = pg_connect('dbname=foo');
  
  // Read in a binary file
  $data = file_get_contents('image1.jpg');
  
  // Escape the binary data
  $escaped = pg_escape_bytea($data);
  
  // Insert it into the database
  pg_query("INSERT INTO gallery (name, data) VALUES ('Pine trees', '{$escaped}')");
?>

	สอน Google Maps Api
	สอน Windows Service
	สอน Entity Framework
	สอน Android
	สอน Java เขียน Java
	Java GUI Swing
	สอน JSP (Web App)
	iOS (iPhone,iPad)
	Windows Phone
	Windows Azure
	Windows Store
	Laravel Framework
	Yii PHP Framework
	สอน jQuery
	สอน jQuery กับ Ajax
	สอน PHP OOP (Vdo)
	Ajax Tutorials
	SQL Tutorials
	สอน SQL (Part 2)
	JavaScript Tutorial
	Javascript Tips
	VBScript Tutorial
	VBScript Validation
	Microsoft Access
	MySQL Tutorials
	-- Stored Procedure
	MariaDB Database
	SQL Server Tutorial
	SQL Server 2005
	SQL Server 2008
	SQL Server 2012
	-- Stored Procedure
	Oracle Database
	-- Stored Procedure
	SVN (Subversion)
	แนวทางการทำ SEO
	ปรับแต่งเว็บให้โหลดเร็ว