PHP: Hypertext Preprocessor (original) (raw)

oci_field_is_null

(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)

oci_field_is_null — Checks if a field in the currently fetched row is [null](reserved.constants.php#constant.null)

Description

Parameters

statement

A valid OCI statement identifier.

column

Can be the field's index (1-based) or name.

Examples

Example #1 oci_field_name() example

`<?php// Create the table with:
// CREATE TABLE mytab (c1 NUMBER);
// INSERT INTO mytab VALUES (1);
// INSERT INTO mytab VALUES (NULL);$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid);

while (( row=ocifetcharray(row = oci_fetch_array(row=ocif​etcha​rray(stid, OCI_RETURN_NULLS)) != false) { ncols=ocinumfields(ncols = oci_num_fields(ncols=ocin​umf​ields(stid);
for ($col = 1; col<=col <= col<=ncols; $col++) {
var_dump(oci_field_is_null($stid, $col));
}
}// Outputs:
// bool(false)
// bool(true)oci_free_statement($stid);
oci_close($conn);?>`

Found A Problem?

Raju Joseph [RajuJoseph at usa dot net] ¶

21 years ago

`<?php// Connect to Oracle database.

// Username : Raju
// Password : Password
// Database : Database_name

$conn=OCILogon("Raju", "Password", "DATABASE_NAME");
if ( ! $conn ) {
echo "Unable to connect: " . var_dump( OCIError() );
die();
}// Select Data...

// DESC[RIBE] COMPANY

// CompanyID VARCHAR2(10)
// CompanyName VARCHAR2(30)
// LastUserID VARCHAR2(15)
// LastDate DATE
// query="SELECT∗FROMCompany";query = "SELECT * FROM Company";query="SELECT∗FROMCompany";result = OCIParse($conn, $query);
OCIExecute($result, OCI_DEFAULT);

while (

OCIFetchInto ($result, $row, OCI_ASSOC)) {// Usage of OCIcolumnisnull()
if (OCIcolumnisnull($result, 'CompanyName')) {

print (

"

" . $row['CompanyID'] . "--->" . "Company Name NOT found !! " . "

" );
}
else {

print (

"

" . row[′CompanyID′]."−−−>".row['CompanyID'] . "--->" . row[′CompanyID′]."−−−>".row['CompanyName'] . "

" );
}
}// Close connection from Oracle...OCILogoff($conn);
?>`