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PHP : Function Reference : Informix Functions : ifx_prepare

ifx_prepare

Prepare an SQL-statement for execution ()
resource ifx_prepare ( string query, resource link_identifier [, int cursor_def, mixed blobidarray] )

Prepares a query for later use with ifx_do().

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 scroll and/or hold cursor. It's a bitmask and can be either IFX_SCROLL, IFX_HOLD, or both or'ed together.

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.

Return Values

Returns a valid result identifier for use by ifx_do(), or FALSE on errors.

See Also
ifx_do()

Code Examples / Notes » ifx_prepare

icespawn11882

This is an example to use this function
$conn = fx_connect( "db", "user", "password" );
$result = ifx_prepare("SELECT customer_num, company FROM customer", $conn);
ifx_do($result);
ifx_prepare associate an int to the query; we use this int with ifx_do
Para Massimiliano


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ifx_affected_rows
ifx_blobinfile_mode
ifx_byteasvarchar
ifx_close
ifx_connect
ifx_copy_blob
ifx_create_blob
ifx_create_char
ifx_do
ifx_error
ifx_errormsg
ifx_fetch_row
ifx_fieldproperties
ifx_fieldtypes
ifx_free_blob
ifx_free_char
ifx_free_result
ifx_get_blob
ifx_get_char
ifx_getsqlca
ifx_htmltbl_result
ifx_nullformat
ifx_num_fields
ifx_num_rows
ifx_pconnect
ifx_prepare
ifx_query
ifx_textasvarchar
ifx_update_blob
ifx_update_char
ifxus_close_slob
ifxus_create_slob
ifxus_free_slob
ifxus_open_slob
ifxus_read_slob
ifxus_seek_slob
ifxus_tell_slob
ifxus_write_slob
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