   #PHP Manual FrontBase Functions fbsql_pconnect fbsql_read_blob

   PHP Manual
   Prev  Next
   ______________________________________________________________________

                                  fbsql_query

   (PHP 4 >= 4.0.6)
   fbsql_query -- Send a FrontBase query

Description

   resource fbsql_query ( string query [, resource link_identifier])

   fbsql_query() sends a query to the currently active database on the
   server that's associated with the specified link identifier. If
   link_identifier isn't specified, the last opened link is assumed. If
   no link is open, the function tries to establish a link as if
   fbsql_connect() was called with no arguments, and use it.

     Note: The query string shall always end with a semicolon.

   fbsql_query() returns TRUE (non-zero) or FALSE to indicate whether or
   not the query succeeded. A return value of TRUE means that the query
   was legal and could be executed by the server. It does not indicate
   anything about the number of rows affected or returned. It is
   perfectly possible for a query to succeed but affect no rows or return
   no rows.

   The following query is syntactically invalid, so fbsql_query() fails
   and returns FALSE:

   Example 1. fbsql_query() example
   <?php
   $result = fbsql_query("SELECT * WHERE 1=1")
       or die ("Invalid query");
   ?>

   The following query is semantically invalid if my_col is not a column
   in the table my_tbl, so fbsql_query() fails and returns FALSE:

   Example 2. fbsql_query() example
   <?php
   $result = fbsql_query ("SELECT my_col FROM my_tbl")
       or die ("Invalid query");
   ?>

   fbsql_query() will also fail and return FALSE if you don't have
   permission to access the table(s) referenced by the query.

   Assuming the query succeeds, you can call fbsql_num_rows() to find out
   how many rows were returned for a SELECT statement or
   fbsql_affected_rows() to find out how many rows were affected by a
   DELETE, INSERT, REPLACE, or UPDATE statement.

   For SELECT statements, fbsql_query() returns a new result identifier
   that you can pass to fbsql_result(). When you are done with the result
   set, you can free the resources associated with it by calling
   fbsql_free_result(). Although, the memory will automatically be freed
   at the end of the script's execution.

   See also: fbsql_affected_rows(), fbsql_db_query(),
   fbsql_free_result(), fbsql_result(), fbsql_select_db(), and
   fbsql_connect().
   ______________________________________________________________________

   Prev           Home            Next
   fbsql_pconnect  Up  fbsql_read_blob
