(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 result resource.
Note:
This function used to be called pg_fieldnum().
result
PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
field_name
The name of the field.
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
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.pg-field-num.php