09-12-2018
Of course, nothing is printed: You are looking for [Ss]tate, [Hh]ostname, or [Ii]p, but your config file has FIRST_IP, FIRST_STATE, and HOST_NAME. No match possible!
On top, you should echo the variables that you assigned to in the function to see a meaningful result.
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LEARN ABOUT PHP
pg_field_size
PG_FIELD_SIZE(3) PG_FIELD_SIZE(3)
pg_field_size - Returns the internal storage size of the named field
SYNOPSIS
int pg_field_size (resource $result, int $field_number)
DESCRIPTION
pg_field_size(3) returns the internal storage size (in bytes) of the field number in the given PostgreSQL $result.
Note
This function used to be called pg_fieldsize(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 internal field storage size (in bytes). -1 indicates a variable length field. FALSE is returned 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_prtlen(3), pg_field_type(3).
PHP Documentation Group PG_FIELD_SIZE(3)