pg_field_num
Returns the field number of the named field
Description
int pg_field_num(PgSql\Result $result, string $field)
Note:
This function used to be called pg_fieldnum.
Parameters
-
result
-
An PgSql\Result instance, returned by pg_query,
pg_query_params or pg_execute(among others).
-
field
-
The name of the field.
The given name is treated like an identifier in an SQL command,
that is, it is downcased unless double-quoted.
Return Values
The field number (numbered from 0), or -1 on error.
Examples
Example #1 Getting information about fields
<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
$res = pg_query($dbconn, "select author, year, title from authors where author = 'Orwell'");
echo "Column 'title' is field number: ", pg_field_num($res, 'title');
?>
The above example will output:
Column 'title' is field number: 2