fbsql_pconnect
fbsql_read_blob
FrontBase Functions
PHP Manual

# fbsql_query

Send a FrontBase query

### Description

resource fbsql_query ( string `$query` [, resource `$link_identifier` [, int `$batch_size` ]] )

Sends a `query` to the currently active database on the server.

If 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.

### Parameters

`query`

  The SQL query to be executed.

  > Note:

  > The query string shall always end with a semicolon.

`link_identifier`

  A FrontBase link identifier returned by fbsql_connect or fbsql_pconnect.

  If optional and not specified, the function will try to find an open link to the FrontBase server and if no such link is found it will try to create one as if fbsql_connect was called with no arguments.

`batch_size`

### Return Values

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.

For SELECT statements, fbsql_query returns a new result identifier that you can pass to fbsql_result.

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

### Examples

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");
?>`

### See Also

- fbsql_affected_rows
- fbsql_db_query
- fbsql_free_result
- fbsql_result
- fbsql_select_db
- fbsql_connect