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ifx_query
Send Informix query
()
resource ifx_query ( string query, resource link_identifier [, int cursor_type [, mixed blobidarray]] )
Sends a query to the currently active database on the server that's associated with the specified link identifier.
For "select-type" queries a cursor is declared and opened. Non-select queries are "execute immediate".
For either query type the number of (estimated or real) affected rows is saved for retrieval by ifx_affected_rows().
If the contents of the TEXT (or BYTE) column allow it, you can also use
ifx_textasvarchar(1) and
ifx_byteasvarchar(1). This allows you to treat TEXT
(or BYTE) columns just as if they were ordinary (but long) VARCHAR columns
for select queries, and you don't need to bother with blob id's.
With ifx_textasvarchar(0) or
ifx_byteasvarchar(0) (the default situation), select
queries will return BLOB columns as blob id's (integer value). You can
get the value of the blob as a string or file with the blob functions (see
below).
Parameters
- query
The query string.
- link_identifier
The link identifier.
- cursor_def
This optional parameter allows you to make this a
scrolland/orholdcursor. It's a bitmask and can be eitherIFX_SCROLL,IFX_HOLD, or both or'ed together. I you omit this parameter the cursor is a normal sequential cursor.- blobidarray
If you have BLOB (BYTE or TEXT) columns in the query, you can add a blobidarray parameter containing the corresponding "blob ids", and you should replace those columns with a "?" in the query text.
Examples
Example 1078. Show all rows of the "orders" table as a HTML table
<?php
ifx_textasvarchar(1); // use "text mode" for blobs
$res_id = ifx_query("select * from orders", $conn_id);
if (! $res_id) {
printf("Can't select orders : %s\n<br />%s<br />\n", ifx_error(), ifx_errormsg());
die;
}
ifx_htmltbl_result($res_id, "border=\"1\"");
ifx_free_result($res_id);
?>
Example 1079. Insert some values into the "catalog" table
<?php
// create blob id's for a byte and text column
$textid = ifx_create_blob(0, 0, "Text column in memory");
$byteid = ifx_create_blob(1, 0, "Byte column in memory");
// store blob id's in a blobid array
$blobidarray[] = $textid;
$blobidarray[] = $byteid;
// launch query
$query = "insert into catalog (stock_num, manu_code, " .
"cat_descr,cat_picture) values(1,'HRO',?,?)";
$res_id = ifx_query($query, $conn_id, $blobidarray);
if (! $res_id) {
/* ... error ... */
}
// free result id
ifx_free_result($res_id);
?>
| ifx_connect() |