(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_field_num — Returns the field number of the named field
pg_field_num ( resource $result , string $field_name ) : int
pg_field_num() will return the number of the field number that corresponds to the
field_name in the given PostgreSQL
This function used to be called pg_fieldnum().
The field number (numbered from 0), or -1 on error.
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
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