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PHP email verification library
<?php
class HasMxTest extends PHPUnit_Framework_TestCase
{
    /**
     * Set up for tests in this file.
     *
     * @access private
     */
    private function setupTest()
    {
        $this->validator = new \EmailValidator\Validator();
    }
    /**
     * Test hasMx
     *
     * @cover \EmailValidator\Validator::hasMx
     */
    public function testHasMx()
    {
        $this->setupTest();
        // Not an email
        $this->assertNull(
            $this->validator->hasMx('example.com')
        );
        // No Records
        $this->assertFalse(
            $this->validator->hasMx('example@example.com')
        );
        // Records
        $this->assertTrue(
            $this->validator->hasMx('example@google.com')
        );
        $this->assertTrue(
            $this->validator->hasMx('example@yahoo.com')
        );
    }
}

This is a PHP email verification library, friends who need it can download and use

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