Quick navigation:

ptb_fieldnames

List names of all fields in the $database or tells if a $fieldname exists in it.

Syntax

$var = ptb_fieldnames($database[, $fieldname = '']);

Syntax description

$database: variable containing connected database
$fieldname: optional: name of a field, which existence in $database you want to check

Return

This function used with one argument returns array or null if database is empty; used with two arguments returns true if the $fieldname exists or null (=false) otherwise.

Sample(s)

if (ptb_fieldnames($myDatabase, 'author')) { // if field 'author' exists in $myDatabase, proceed ...