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

Description

oci_field_is_null(resource $statement, string |int $column): bool

Checks if the given column from the current row of statement is null .

Parameters

statement: A valid OCI statement identifier.
column: Can be the field's index (1-based) or name.

Return Values

Returns true if column is null , false otherwise.

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 (($row = oci_fetch_array($stid, OCI_RETURN_NULLS)) != false) {
 $ncols = oci_num_fields($stid);
 for ($col = 1; $col <= $ncols; $col++) {
 var_dump(oci_field_is_null($stid, $col));
 } 
}

// Outputs:
// bool(false)
// bool(true)

oci_free_statement($stid);
oci_close($conn);

?>

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User Contributed Notes 1 note

down

Raju Joseph [RajuJoseph at usa dot net] ¶

22 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 * FROM Company";
 $result = OCIParse($conn, $query);
 OCIExecute($result, OCI_DEFAULT);
while (OCIFetchInto ($result, $row, OCI_ASSOC)) {
// Usage of OCIcolumnisnull()
if (OCIcolumnisnull($result, 'CompanyName')) {
 print ( "<P>" . $row['CompanyID'] . "--->" . "Company Name NOT found !! " . "<P>" );
}
else {
 print ("<P>" . $row['CompanyID'] . "--->" . $row['CompanyName'] . "<P>" );
}
}
// Close connection from Oracle...
 OCILogoff($conn);
?>

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