PHP 5.4.36 Released

oci_field_is_null

(PHP 5, PECL OCI8 >= 1.1.0)

oci_field_is_nullChecks if a field in the currently fetched row is NULL

Descrição

bool oci_field_is_null ( resource $statement , mixed $field )

Checks if the given field from the current row of statement is NULL.

Parâmetros

statement

A valid OCI statement identifier.

field

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

Valor Retornado

Returns TRUE if field is NULL, FALSE otherwise.

Exemplos

Exemplo #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 ((
$row oci_fetch_array($stidOCI_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);

?>

Notas

Nota:

In PHP versions before 5.0.0 you must use ocicolumnisnull() instead. This name still can be used, it was left as alias of oci_field_is_null() for downwards compatability. This, however, is deprecated and not recommended.

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User Contributed Notes 1 note

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Raju Joseph [RajuJoseph at usa dot net]
11 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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