[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fJpBckBQM_wTu176Er63GegIIZd8vy0FcXcLv07vy80w":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":27,"type":91},[],"2025-03-24 16:39:45",180144328,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},11,"6d652bfa0bf00b4640e6f7981a1f48ac","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","数据库原理与应用","work_42011741","PHP作业1","PHP中,如何声明一个字符串变量并赋值为 "Hello World"",[17,29,38,47,56,65,74,83,88,92],{"answer":18,"createTime":19,"id":20,"options":21,"question":26,"source":27,"type":28},[],"2025-03-24 16:16:54",180141368,[22,23,24,25],"4","5","6","无限","下面的for循环输出多少次 "Hello"? Plain Textfor ($i = 0; $i < 5; $i++) { echo "Hello";}","v1",0,{"answer":30,"createTime":19,"id":31,"options":32,"question":37,"source":27,"type":28},[],180141370,[33,34,35,36],"strlen()","string_length()","length()","strlength()","在PHP中,如何获取字符串的长度",{"answer":39,"createTime":19,"id":40,"options":41,"question":46,"source":27,"type":28},[],180141372,[42,43,44,45],"如果 $x小于 10,则输出 "Greater"","如果 $x大于 10,则输出 "Greater"","如果 $x等于 10,则输出 "Greater"","如果 $x小于等于 10,则输出 "Greater"","以下代码中, if语句会判断什么条件? Plain Textif ($x > 10) { echo "Greater";} else { echo "Smaller or equal";}",{"answer":48,"createTime":19,"id":49,"options":50,"question":55,"source":27,"type":28},[],180141374,[51,52,53,54],"510","15","5 10","Error","以下代码片段输出是什么? Plain Text $myFunction = function($x, $y) { return $x + $y; }; echo $myFunction(5, 10)",{"answer":57,"createTime":19,"id":58,"options":59,"question":64,"source":27,"type":28},[],180141376,[60,61,62,63],"绑定类方法到类对象","导入类到当前命名空间","传递变量到匿名函数作用域","获取外部函数的返回值","在PHP中,use关键字用于什么目的",{"answer":66,"createTime":19,"id":67,"options":68,"question":73,"source":27,"type":28},[],180141378,[69,70,71,72],"true","false","1","0","以下表达式的输出结果是什么? Plain Text$a = true;$b = false;$c = true;$result = ($a && $b) || $c;echo $result",{"answer":75,"createTime":19,"id":76,"options":77,"question":82,"source":27,"type":28},[],180141380,[78,79,80,81],"","Plain Text["a" => "avocado", "b" => "apple"]","Plain Text["a" => "avocado", "b" => "banana"]","错误","以下代码的输出是什么? Plain Text$arr = ["a" => "apple", "b" => "banana"];$arr["a"] = "avocado";print_r($arr)",{"answer":84,"createTime":5,"id":85,"options":86,"question":82,"source":27,"type":28},[],180144327,[87,79,80,81],"["a" => "apple", "b" => "banana", "a" => "avocado"]",{"answer":89,"createTime":5,"id":6,"options":90,"question":15,"source":27,"type":91},[],[],2,{"answer":93,"createTime":5,"id":94,"options":95,"question":96,"source":27,"type":91},[],180144329,[],"如何定义一个常量 PI,并赋值为 A"]