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Top Forums Shell Programming and Scripting Counting the max length of string Post 302108180 by ganesh123 on Friday 23rd of February 2007 03:27:38 PM
Old 02-23-2007
thanks anbu
 

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PG_FIELD_NAME(3)														  PG_FIELD_NAME(3)

pg_field_name - Returns the name of a field

SYNOPSIS
string pg_field_name (resource $result, int $field_number) DESCRIPTION
pg_field_name(3) returns the name of the field occupying the given $field_number in the given PostgreSQL $result resource. Field numbering starts from 0. Note This function used to be called pg_fieldname(3). PARAMETERS
o $result - PostgreSQL query result resource, returned by pg_query(3), pg_query_params(3) or pg_execute(3) (among others). o $field_number - Field number, starting from 0. RETURN VALUES
The field name, or FALSE 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 * from authors where author = 'Orwell'"); $i = pg_num_fields($res); for ($j = 0; $j < $i; $j++) { echo "column $j "; $fieldname = pg_field_name($res, $j); echo "fieldname: $fieldname "; echo "printed length: " . pg_field_prtlen($res, $fieldname) . " characters "; echo "storage length: " . pg_field_size($res, $j) . " bytes "; echo "field type: " . pg_field_type($res, $j) . " "; } ?> The above example will output: column 0 fieldname: author printed length: 6 characters storage length: -1 bytes field type: varchar column 1 fieldname: year printed length: 4 characters storage length: 2 bytes field type: int2 column 2 fieldname: title printed length: 24 characters storage length: -1 bytes field type: varchar SEE ALSO
pg_field_num(3). PHP Documentation Group PG_FIELD_NAME(3)
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