The COM class

(PHP 4 >= 4.1.0, PHP 5, PHP 7)

Introducere

The COM class allows you to instantiate an OLE compatible COM object and call its methods and access its properties.

Sinopsisul clasei

COM extends VARIANT {
/* Metode */
__construct ( string $module_name [, mixed $server_name = NULL [, int $codepage = CP_ACP [, string $typelib ]]] )
}

Overloaded Methods

The returned object is an overloaded object, which means that PHP does not see any fixed methods as it does with regular classes; instead, any property or method accesses are passed through to COM.

PHP will automatically detect methods that accept parameters by reference, and will automatically convert regular PHP variables to a form that can be passed by reference. This means that you can call the method very naturally; you needn't go to any extra effort in your code.

COM examples

Example #1 COM example (1)

<?php
// starting word
$word = new COM("word.application") or die("Unable to instantiate Word");
echo 
"Loaded Word, version {$word->Version}\n";

//bring it to front
$word->Visible 1;

//open an empty document
$word->Documents->Add();

//do some weird stuff
$word->Selection->TypeText("This is a test...");
$word->Documents[1]->SaveAs("Useless test.doc");

//closing word
$word->Quit();

//free the object
$word null;
?>

Example #2 COM example (2)

<?php

$conn 
= new COM("ADODB.Connection") or die("Cannot start ADO");
$conn->Open("Provider=SQLOLEDB; Data Source=localhost;
Initial Catalog=database; User ID=user; Password=password"
);

$rs $conn->Execute("SELECT * FROM sometable");    // Recordset

$num_columns $rs->Fields->Count();
echo 
$num_columns "\n";

for (
$i=0$i $num_columns$i++) {
    
$fld[$i] = $rs->Fields($i);
}

$rowcount 0;
while (!
$rs->EOF) {
    for (
$i=0$i $num_columns$i++) {
        echo 
$fld[$i]->value "\t";
    }
    echo 
"\n";
    
$rowcount++;            // increments rowcount
    
$rs->MoveNext();
}

$rs->Close();
$conn->Close();

$rs null;
$conn null;

?>

Cuprins