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mysql_field_lenmysql_field_len (PHP 3, PHP 4, PHP 5) mysql_field_len -- Returns the length of the specified field Descriptionint mysql_field_len ( resource result, int field_offset )
mysql_field_len() returns the length of the
specified field.
Parameters
-
result
The result resource that
is being evaluated. This result comes from a call to
mysql_query(). -
field_offset
The numerical field offset. The
field_offset starts at 0. If
field_offset does not exist, an error of level
E_WARNING is also issued.
Return Values
The name of the specified field index on success, or FALSE on failure.
Examples
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 id field as specified in the database
// schema.
$length = mysql_field_len($result, 0);
echo $length;
?>
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NotesNote:
For downward compatibility, the following
deprecated alias may be used:
mysql_fieldlen()
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