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  pg_escape_bytea
PHP Manual
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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 ( 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

data

A string containing text or binary data to be inserted into a bytea column.

Return Values

A string containing the escaped data.

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}')");
?>

See Also

pg_unescape_bytea()
pg_escape_string()

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