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pg_escape_literal

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(PHP 5 >= 5.4.4, PHP 7)

pg_escape_literal — Escape a literal for insertion into a text field

Description

pg_escape_literal ([ resource $connection ], string $data ) : string

pg_escape_literal() escapes a literal for querying the PostgreSQL database. It returns an escaped literal in the PostgreSQL format. pg_escape_literal() adds quotes before and after data. Users should not add quotes. Use of this function is recommended instead of pg_escape_string(). If the type of the column is bytea, pg_escape_bytea() must be used instead. For escaping identifiers (e.g. table, field names), pg_escape_identifier() must be used.

Note:

This function has internal escape code and can also be used with PostgreSQL 8.4 or less.

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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(). When there is no default connection, it raises E_WARNING and returns FALSE.

data

A string containing text to be escaped.

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Return Values

A string containing the escaped data.

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Examples

Example #1 pg_escape_literal() 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
  $escaped = pg_escape_literal($data);
  
  // Insert it into the database. Note that no quotes around {$escaped}
  pg_query("INSERT INTO correspondence (name, data) VALUES ('My letter', {$escaped})");
?>

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See Also

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Document created the 30/01/2003, last modified the 26/10/2018
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References

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