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mysql_field_name
Synopsis
string mysql_field_name(result_handle, field_offset);
mysql result result_handle:
Result handle returned by mysql_db_query() or mysql_query()
int field_offset: Field
offset to use
Description
mysql_field_name() fetches the name of a specified field in a result set. The field_offset argument specifies the desired field. The field offset starts at 0.
If the field's value is generated by an expression, the expression is used as the name. For example, suppose this is the query:
SELECT count(user);
The name property would be count(user).
If an alias is used for the column (or an expression), the alias is used as the name. For all other cases, the column name is used as the field name.
Example
Example 812. Show how mysql_field_name() behaves
<?php
// Included code that connects to a MySQL server and sets a default database
// See the MySQL Functions chapter introduction for the source code for the file
include ('mysql_connect.inc.php');
// A SELECT query using column names, aliases, and a few expressions
$query = "SELECT login, login as alt_login, NOW()+0, UNIX_TIMESTAMP() as TS FROM user";
// Run the query
$mysql_result = @ mysql_query ($query)
or die ("Query '$query' failed with error message: \"" . mysql_error () . '"');
// Loop through each field, grabbing the field names
for ($offset = 0; $offset < mysql_num_fields ($mysql_result); ++$offset) {
$field_names[] = mysql_field_name ($mysql_result, $offset);
}
// Display the field names
echo "The field names from query <b>$query</b> are <b>:<ul><li>",
join ('<li>', $field_names), '</ul>';
?>