PHP ActiveX

Eval JavaScript Returning String

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Demonstrates getting the completion value of a JavaScript that returns a string. PHP ActiveX

<?php

$success = 0;

//  This example demonstrates getting the completion value of a script,
//  where the last evaluated expression is a string.

//  The Javascript run in this example is shown below.

//  Load the JavaScript from a file.
$sbScript = new COM("Chilkat.StringBuilder");
$success = $sbScript->LoadFile('js_eval_return_string.js','utf-8');
if ($success == 0) {
    print $sbScript->LastErrorText . "\n";
    exit;
}

$js = new COM("Chilkat.Js");
$result = new COM("Chilkat.JsonObject");

//  Run the JavaScript
//  Eval returns the completion value of the script. This is generally the value of the last evaluated expression.
//  In this case, the last evaluated expression is a string.
$success = $js->Eval($sbScript,$result);
if ($success == 0) {
    print $js->LastErrorText . "\n";
    exit;
}

$result->EmitCompact = 0;
print $result->emit() . "\n";

//  Output:

//  {
//    "type": "string",
//    "value": "Ready for Chilkat.Js"
//  }

?>

JavaScript

var status = "Ready";
var system = "Chilkat.Js";

// The last statement is an expression
status + " for " + system;