public function testIsAssocArray() { $arr = array(1, 2, 3); $this->assertEquals(false, PPArrayUtil::isAssocArray($arr)); $arr = array('name' => 'John Doe', 'City' => 'San Jose'); $this->assertEquals(true, PPArrayUtil::isAssocArray($arr)); $arr[] = 'CA'; $this->assertEquals(false, PPArrayUtil::isAssocArray($arr)); }