mysql fetch assoc VS mysql fetch array

Question

Below are two methods commonly used in most php codes for fetch mysql data .

1. mysql_fetch_array()
2. mysql_fetch_assoc()
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Answer 1

This Is the result of mysql_fetch_array()

$row['fieldname'] = 'some value';

or

$row[0] = some value';

This Is the result of mysql_fetch_assoc() will only return

$row['fieldname'] = 'some value';