PHP复习题附答案(共8页).doc

精选优质文档-倾情为你奉上php复习题第2章 数据与变量1. 写出相关PHP代码的输出结果。(1)$a = hello;$b = &$a;$b = 100;echo $a;答案：100(2) $test = aaaaaa; $abc = &$test; unset($test); echo $abc; 答案：aaaaaa(3)$var1 = 5;$var2 = 1; function get_value() global $var2; $var1 = 0; return $var2+; get_value(); echo $var1, $var2;答案：52(4)function get_count() static $count = 2; return $count+; $count = 5;get_count();echo get_count();答案：3(5)$num =10;