(PHP 4 >= 4.2.0, PHP 5, PHP 7)
Returns the number of fields in a result
int pg_num_fields ( resource $result )
pg_num_fields() returns the number of fields (columns) in a PostgreSQL result resource.
Note:
This function used to be called pg_numfields().
Parameters:
result
PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
Returns:
The number of fields (columns) in the result. On error, -1 is returned.
Examples:
pg_num_fields() example
<?php $result = pg_query($conn, "SELECT 1, 2"); $num = pg_num_fields($result); echo $num . " field(s) returned.\n"; ?>
The above example will output:
2 field(s) returned.
See also:
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