Note, that when you retrieve some PG boolean value, you get 't' or 'f' characters which are not compatible with PHP bool.
(PHP 4, PHP 5)
pg_fetch_row — Carica una tupla in un array
$result
, int $tupla
)
pg_fetch_row() carica un record dal
risultato della query associato alla risorsa identificata
da result
. La riga (record) è
restituia sotto form di array. Ogni campo è identificato da un indice
numerico, che inizia da 0.
Restituisce un array che corrisponde alla riga caricata, oppure FALSE
se non ci sono altre tuple.
Example #1 Postgres fetch row
<?php
$conn = pg_pconnect ("dbname=editori");
if (!$conn) {
echo "Si è verificato un errore.\n";
exit;
}
$result = pg_query ($conn, "SELECT * FROM autori");
if (!$rrisultato) {
echo "Si è verificato un errore.\n";
exit;
}
while ($row = pg_fetch_row($risultato, $i)) {
for ($j=0; $j < count($row); $j++) {
echo "$row[$j] ";
}
echo "<BR>";
}
?>
Vedere anche pg_query(), pg_fetch_array(), pg_fetch_object() e pg_fetch_result().
Nota:
Dalla versione 4.1.0,
row
è opzionale. La chiamata a pg_fetch_row() incrementa il puntatore alle tuple di 1.
Note, that when you retrieve some PG boolean value, you get 't' or 'f' characters which are not compatible with PHP bool.
I wondered whether array values of PostgreSQL are converted to PHP arrays by this functions. This is not the case, they are stored in the returned array as a string in the form "{value1 delimiter value2 delimiter value3}" (See http://www.postgresql.org/docs/8.0/interactive/arrays.html#AEN5389).
a way to do this with 2 loops to insert data into a table...
$num = pg_numrows($result);
$col_num = pg_numfields($result);
for ($i=0; $i<$num; $i++) {
$line = pg_fetch_array($result, $i, PGSQL_ASSOC);
print "\t<tr bgcolor=#dddddd>\n";
for ($j=0; $j<$col_num; $j++){
list($col_name, $col_value) =each($line);
print "\t\t<TD ALIGN=RIGHT><FONT SIZE=1 FACE='Geneva'>$col_value</FONT></TD>\n";
}
echo "<br>";
}
pg_fetch_row is faster than pg_fetch_assoc when doing a query with * as the select parameter. Otherwise, with declared columns, the two are similar in speed.
Note that the internal row counter is incremented BEFORE the row is retrieved. This causes an off by one error if you try to do:
pg_result_seek($resid,0);
pg_fetch_row($resid);
you will get back the SECOND result not the FIRST.
Get downlines, put them into arrays.
function get_downlines($my_code){
global $link;
$sql = "select user_id, name from tb_user where parentcode = $my_code";
$res = pg_query($link,$sql);
if(!$res){
echo "Error: ".$sql;exit();
}
$num_fields = pg_num_fields($res);
$info_rows = 0;
$num_rows = pg_num_rows($res);
while($arr = pg_fetch_row($res)){
$info_offset = 1;
$info_columns = 0;
while ($info_offset <= $num_fields) {
$info_elements[$info_rows][$info_columns] = $arr[$info_columns];
$info_offset++; $info_columns++;
}
$info_rows++;
}
return $info_elements;
}
I use the following code to assigning query result to an array.
while ($row = pg_fetch_row($result)) $newArray[] = $row[0];
print_r($newArray);