PHP Extension

Call a JavaScript Function Returning an Array

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Demonstrates how to call a JavaScript function that returns an array. PHP Extension

<?php

include("chilkat.php");

$success = false;

// ----------------------------------------------------------------------------------
// The Javascript functions called in this example are shown at the bottom of this page.
// -----------------------------------------------------------------------------------

$sbScript = new CkStringBuilder();
$success = $sbScript->LoadFile('js_function_returning_array.js','utf-8');
if ($success == false) {
    print $sbScript->lastErrorText() . "\n";
    exit;
}

$js = new CkJs();

$result = new CkJsonObject();
$result->put_EmitCompact(false);

// Call Eval to add the function to the context's global object
$success = $js->Eval($sbScript,$result);
if ($success == false) {
    // Examine the result for an exception.
    print $result->emit() . "\n";

    // Also examine the LastErrorText.
    print $js->lastErrorText() . "\n";
    exit;
}

// ------------------------------------------------------------------------------
// Call each function

$funcCall = new CkJsonObject();

// Create JSON specifying the function name and arguments
// The function has no arguments, so we only specify the name.

$funcCall->UpdateString('name','getDays');

$success = $js->CallFunction($funcCall,$result);
if ($success == false) {
    // Examine the result for an exception.
    print $result->emit() . "\n";

    // Also examine the LastErrorText.
    print $js->lastErrorText() . "\n";
    exit;
}

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

// Output:
// {
//   "type": "array",
//   "value": [
//     "Monday",
//     "Tuesday",
//     "Wednesday",
//     "Thursday",
//     "Friday"
//   ]
// }

// Access each array value..
$count = $result->SizeOfArray('value');
$i = 0;
while ($i < $count) {
    $result->put_I($i);
    print $result->stringOf('value[i]') . "\n";
    $i = $i + 1;
}

// ------------------------------------------------------------------------------
// Call the getRange(start,end) function

$funcCall->Clear();
$funcCall->UpdateString('name','getRange');
$funcCall->UpdateInt('args[0]',14);
$funcCall->UpdateInt('args[1]',21);
$success = $js->CallFunction($funcCall,$result);
print $result->emit() . "\n";

// Output:
// {
//   "type": "array",
//   "value": [
//     14,
//     15,
//     16,
//     17,
//     18,
//     19,
//     20,
//     21
//   ]
// }

$count = $result->SizeOfArray('value');
$i = 0;
while ($i < $count) {
    $result->put_I($i);
    print $result->IntOf('value[i]') . "\n";
    $i = $i + 1;
}

// ------------------------------------------------------------------------------
// Call the getEmployees() function

$funcCall->Clear();
$funcCall->UpdateString('name','getEmployees');
$success = $js->CallFunction($funcCall,$result);
print $result->emit() . "\n";

// Output:
// {
//   "type": "array",
//   "value": [
//     {
//       "id": 101,
//       "name": "Alice",
//       "role": "Dev"
//     },
//     {
//       "id": 102,
//       "name": "Bob",
//       "role": "Manager"
//     }
//   ]
// }

$count = $result->SizeOfArray('value');
$i = 0;
while ($i < $count) {
    $result->put_I($i);
    print 'name: ' . $result->stringOf('value[i].name') . "\n";
    print 'role: ' . $result->stringOf('value[i].role') . "\n";
    print 'id: ' . $result->IntOf('value[i].id') . "\n";
    print '' . "\n";
    $i = $i + 1;
}


?>