<?php $name; $name = "張三"; echo $name; ?>
<?php $name = "lisi"; $name = "1231"; $age = $age2 = $age3 =18; echo $age."<br/>"; echo $age2."<br/>"; echo $name; ?>
<?php //常量 define("PI",3.1415926); //求半徑是10的圓面積 $s = PI*10*10; echo $s; ?>
<?php echo __LINE__; echo __FILE__; echo "<br/>"; function test() { echo __FUNCTION__; } test(); class test { public $name; public function getMethod() { echo "我是屬於這個方法:".__METHOD__; echo "<br/>"; } public function getClassName() { echo "我是屬於這個類:".__CLASS__; } } //建立對象 $test = new test; $test->getMethod(); $test->getClassName(); ?>
<?php $name = "張三"; echo $name; $arr = array(1,2.2,3,'dfsa','犯得着看見發貨'); //var_dump(name); //var_dump($name); //var_dump($arr); //print_r($arr); print($arr); ?>