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# ifx_query

(PHP 3 >= 3.0.3, PHP 4, PHP 5)

ifx_query -- Send Informix query

## Descrição

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).

## Parâmetros

`query`

  The query string.

`link_identifier`

  The link identifier.

`cursor_def`

  This optional parameter allows you to make this a `scroll` and/or `hold` cursor. It's a bitmask and can be either `IFX_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.

## Valores de retornado

Returns valid Informix result identifier on success, or `FALSE` on errors.

## Exemplos

Exemplo 1. 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); ?>`

Exemplo 2. 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);
?>`

## Veja também

ifx_connect()

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