fbsql_query

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

fbsql_query — Send a FrontBase query

Açıklama

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

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.

Değiştirgeler

query

The SQL query to be executed.

Bilginize:

The query string shall always end with a semicolon.

bağlantı_tanıtıcısı

fbsql_connect() veya fbsql_pconnect() işlevinden dönen bir FrontBase bağlantı tanıtıcısı.

İsteğe bağlıysa ve belirtilmemişse işlev, FrontBase sunucusuna açılmış bir bağlantı olup olmadığına bakar, bir bağlantı yoksa fbsql_connect() işlevi değiştirgesiz çağrılmışçasına bir bağlantı oluşturmaya çalışır.

batch_size

Dönen Değerler

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.

Örnekler

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

Örnek 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:

Örnek 2 fbsql_query() example

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

Ayrıca Bakınız