PHP Unconference Europe 2015

ibase_query

(PHP 5)

ibase_queryEsegue una query su di un database InterBase

Descrizione

int ibase_query ([ int $link_identifier ], string $query [, int $bind_args ] )

Esegue una query su di un database InterBase. Se la query non ha successo, restituisce FALSE. Se ha successo e vi sono riga di risultato (come si ha ad esempio con le query SELECT), restituisce un identificatore di risorsa. Se la query ha avuto successo, ma non ci sono risultati, restituisce TRUE. Restutuisce FALSE se la query fallisce.

Vedere anche ibase_errmsg(), ibase_fetch_row(), ibase_fetch_object() e ibase_free_result().

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User Contributed Notes 4 notes

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2
escoric at latinmail dot com
10 years ago
/* If your work environment is windows */

$link=ibase_connect ($path, $usuario, $password, 'WIN1251');
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1
chrisg at cordell dot com dot au
10 years ago
Simple function to retrieve the results of an SQL statement into an array, will also cater for BLOB fields:

<?php
function interbase_sql_exec ($sql) {
   
$dataArr = array();
   
$host = "svrname:path\filename.GDB";
   
$username = "whatever";
   
$password = "******";
   
$connection = ibase_connect ($host, $username, $password,'ISO8859_1', '100', '1');
   
$rid = @ibase_query ($connection, $sql);
    if (
$rid===false) errorHandle(ibase_errmsg(),$sql);
   
$coln = ibase_num_fields($rid);
   
$blobFields = array();
    for (
$i=0; $i < $coln; $i++) {
       
$col_info = ibase_field_info($rid, $i);
        if (
$col_info["type"]=="BLOB") $blobFields[$i] = $col_info["name"];
    }
    while (
$row = ibase_fetch_row ($rid)) {
        foreach (
$blobFields as $field_num=>$field_name) {
           
$blobid = ibase_blob_open($row[$field_num]);
           
$row[$field_num] = ibase_blob_get($blobid,102400);
           
ibase_blob_close($blobid);
        }
       
$dataArr[] = $row;
    }
   
ibase_close ($connection);
    return
$dataArr;
}
?>
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0
SenorTZ senortz at nospam dot yahoo dot com
11 years ago
Two comments on interogating system tables in Interbase or Firebird; I hope it helps.

1. if you try to build a query string to extract data from a system table (that has the form "rdb$some_name"), you should divide the "rdb$some_name" table name in your query string using the string merge operator ".".
$query = "select rdb"."$"."relation_name as TABLE_NAME from rdb"."$"."relations where rdb"."$"."system_flag=0";

2. The second thing is related to the fact that you can later use (after the call to ibase_fetch_object) as field identifier the ALIAS used in the query for the "rdb$some_name" table.

Example:
$get_table_names_query = "select rdb"."$"."relation_name as TABLE_NAME from rdb"."$"."relations where rdb"."$"."system_flag=0";
//
$res_table_names_query = ibase_query($dbconnection, $get_table_names_query);
//
while ($row_table_names = ibase_fetch_object($res_table_names_query))
{
    print($row_table_names->TABLE_NAME);//alias used
}

Editor's note:
it is easier to use a backslash to protect the $-sign.
eg. "select rdb\$relation_name as TABLE_NAME from ..."
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0
eric_cavalcanti at hotmail dot com
12 years ago
Using BLOB

Insert BLOB:

/* create blob */
$blob_id = ibase_blob_create();

/* fill blob */
ibase_blob_add($blob_id, $var_datablob);

/* close new blob */
$blob_id_str = ibase_blob_close($blob_id);

/* insert into table  */
ibase_query("INSERT INTO BLOB_TABLE (ID, BLOB) VALUES (1, ?)",$blob_id_str);

Open BLOB:

/* query */
$set = ibase_query("SELECT BLOB FROM BLOB_TABLE WHERE ID = 1");

/* fetche a row */
$row = ibase_fetch_object($set);

/* open BLOB for read */
$blob_id = ibase_blob_open($row->BLOB);

/* get BLOB data */
$stringBLOB = ibase_blob_get($blob_id);

/* print BLOB */
echo $stringBLOB;

/* close new blob */
ibase_blob_close($blob_id);

/* free result */
ibase_free_result($set);
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