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PHP mssql_fetch_field

PHP original manual for mssql_fetch_field [ show | php.net ]

mssql_fetch_field

(PHP 4, PHP 5, PECL odbtp >= 1.1.1)

mssql_fetch_field — Get field information

Warning

This function was REMOVED in PHP 7.0.0.

Alternatives to this function include:

Description

object mssql_fetch_field ( resource $result [, int $field_offset = -1 ] )

mssql_fetch_field() can be used in order to obtain information about fields in a certain query result.

Parameters

result

The result resource that is being evaluated. This result comes from a call to mssql_query().

field_offset

The numerical field offset. If the field offset is not specified, the next field that was not yet retrieved by this function is retrieved. The field_offset starts at 0.

Return Values

Returns an object containing field information.

The properties of the object are:

  • name - column name. if the column is a result of a function, this property is set to computed#N, where #N is a serial number.
  • column_source - the table from which the column was taken
  • max_length - maximum length of the column
  • numeric - 1 if the column is numeric
  • type - the column type.

Examples

Example #1 mssql_fetch_field() example

<?php
// Connect to MSSQL and select the database
mssql_connect('MANGO\SQLEXPRESS', 'sa', 'phpfi');
mssql_select_db('php');

// Send a select query to MSSQL
$query = mssql_query('SELECT * FROM [php].[dbo].[persons]');

// Construct table
echo '<h3>Table structure for \'persons\'</h3>';
echo '<table border="1">';

// Table header
echo '<thead>';
echo '<tr>';
echo '<td>Field name</td>';
echo '<td>Data type</td>';
echo '<td>Max length</td>';
echo '</tr>';
echo '</thead>';

// Dump all fields
echo '<tbody>';

for ($i = 0; $i < mssql_num_fields($query); ++$i) {
    // Fetch the field information
    $field = mssql_fetch_field($query, $i);

    // Print the row
    echo '<tr>';
    echo '<td>' . $field->name . '</td>';
    echo '<td>' . strtoupper($field->type) . '</td>';
    echo '<td>' . $field->max_length . '</td>';
    echo '</tr>';
}

echo '</tbody>';
echo '</table>';

// Free the query result
mssql_free_result($query);
?>

See Also