lv_ct_test.php

<?php

// Bootstrap ProcessWire                                                                                                                                                                                    
require "index.php";

// Install LanguageSupportFields (unless already installed)                                                                                                                                                 
if (!wire('modules')->isInstalled('LanguageSupportFields')) {
    wire('modules')->install('LanguageSupportFields');
}

// Create new multi-language textfield and add it to basic-page template                                                                                                                                    
$field = new Field;
$field->type = wire('modules')->get('FieldtypeTextLanguage');
$field->name = 'text_language';
$field->save();
$fieldgroup = wire('fieldgroups')->get('basic-page');
$fieldgroup->add($field);
$fieldgroup->save();

// Create new page and assign value to multi-language textfield                                                                                                                                             
$page = new Page;
$page->parent = wire('pages')->get('/');
$page->template = wire('templates')->get('basic-page');
$page->title = "a test page";
$page->text_language->setLanguageValue(wire('languages')->get('default'), 'test');
for ($i=0; $i<5; ++$i) {
    if ($page->isChanged()) {
        echo "* changed ($i)\n";
        $page->save();
    }
}

// Remove page                                                                                                                                                                                              
$page->delete();

// Remove field                                                                                                                                                                          
$fieldgroup->remove($field);
$fieldgroup->save();
wire('fields')->delete($field);