pg_field_num
(PHP 4 >= 4.2.0, PHP 5)
pg_field_num -- Returns the field number of the named field
Beskrivelse
int
pg_field_num ( resource result, string field_name )
pg_field_num() will return the number of the
field number that corresponds to the
field_name
in the given PostgreSQL
result
resource.
Bemærk:
This function used to be called pg_fieldnum().
Returneringsværdier
The field number (numbered from 0), or -1 on error.
Eksempler
Eksempel 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'); ?>
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Ovenstående eksempel vil udskrive: Column 'title' is field number: 2 |
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