mysql_field_len
(PHP 3, PHP 4 , PHP 5)
mysql_field_len --
Returns the length of the specified field
Description
int
mysql_field_len ( resource result, int field_offset )
mysql_field_len() returns the length of the
specified field.
Example 1. mysql_field_len() example
<?php
$result = mysql_query("SELECT id,email FROM people WHERE id = '42'");
if (!$result) {
echo 'Could not run query: ' . mysql_error();
exit;
}
// Will get the length of the value in email so for example
// user@example.com would give us a length of 16
$length = mysql_field_len($result, 'email');
echo $length;
?>
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For downward compatibility mysql_fieldlen()
can also be used. This is deprecated, however.
See also mysql_fetch_lengths() and
strlen().