oci_field_size

(PHP 5, PECL OCI8 >= 1.1.0)

oci_field_sizeReturns field's size

Beschreibung

int oci_field_size ( resource $statement , mixed $field )

Returns the size of a field.

Parameter-Liste

statement

A valid OCI statement identifier.

field

Can be the field's index (1-based) or name.

Rückgabewerte

Returns the size of a field in bytes, or FALSE on errors.

Beispiele

Beispiel #1 oci_field_size() example

<?php

// Create the table with:
//   CREATE TABLE mytab (number_col NUMBER, varchar2_col varchar2(1), 
//                       clob_col CLOB, date_col DATE);

$conn oci_connect("hr""hrpwd""localhost/XE");
if (!
$conn) {
    
$m oci_error();
    
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

$stid oci_parse($conn"SELECT * FROM mytab");
oci_execute($stidOCI_DESCRIBE_ONLY); // Use OCI_DESCRIBE_ONLY if not fetching rows

echo "<table border=\"1\">\n";
echo 
"<tr>";
echo 
"<th>Name</th>";
echo 
"<th>Type</th>";
echo 
"<th>Length</th>";
echo 
"</tr>\n";

$ncols oci_num_fields($stid);

for (
$i 1$i <= $ncols$i++) {
    
$column_name  oci_field_name($stid$i);
    
$column_type  oci_field_type($stid$i);
    
$column_size  oci_field_size($stid$i);

    echo 
"<tr>";
    echo 
"<td>$column_name</td>";
    echo 
"<td>$column_type</td>";
    echo 
"<td>$column_size</td>";
    echo 
"</tr>\n";
}

echo 
"</table>\n";

// Outputs:
//    Name           Type       Length
//    NUMBER_COL    NUMBER        22
//    VARCHAR2_COL  VARCHAR2       1
//    CLOB_COL      CLOB        4000
//    DATE_COL      DATE           7

oci_free_statement($stid);
oci_close($conn);

?>

Anmerkungen

Hinweis:

In PHP versions before 5.0.0 you must use ocicolumnsize() instead. This name still can be used, it was left as alias of oci_field_size() for downwards compatability. This, however, is deprecated and not recommended.

Siehe auch

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User Contributed Notes 1 note

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rudi at darx dot com
14 years ago
Just a note regarding the size of Oracle  NUMBERS will always return 22 as their "size".

This seems to be an Oracle feature. The rest of the documentation is in bug5156.
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