(PHP 4, PHP 5, PHP 7, PHP 8)
pg_fetch_row — Carica una tupla in un array
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,
rowè opzionale. La chiamata a pg_fetch_row() incrementa il puntatore alle tuple di 1.
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).Note, that when you retrieve some PG boolean value, you get 't' or 'f' characters which are not compatible with PHP bool.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.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'>$col_value</FONT></TD>\n";
}
echo "<br>";
}Note that the internal row counter is incremented BEFORE the row is retrieved. This causes an off by one error if you try to do:
pg_result_seek($resid,0);
pg_fetch_row($resid);
you will get back the SECOND result not the FIRST.