[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fQEFzKrtGYArhgFoUlPPic2W79ilDTeFOX5u6kqodP2U":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-03-24 16:16:54",180141368,[8,9,10,11],"4","5","6","无限",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},11,"6d652bfa0bf00b4640e6f7981a1f48ac","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","数据库原理与应用","work_42011741","PHP作业1","下面的for循环输出多少次 "Hello"? Plain Textfor ($i = 0; $i < 5; $i++) { echo "Hello";}",[21,26,35,44,53,62,71,80,86,92],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],180141370,[30,31,32,33],"strlen()","string_length()","length()","strlength()","在PHP中,如何获取字符串的长度",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],180141372,[39,40,41,42],"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":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],180141374,[48,49,50,51],"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 $myFunction(5, 10)",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],180141376,[57,58,59,60],"绑定类方法到类对象","导入类到当前命名空间","传递变量到匿名函数作用域","获取外部函数的返回值","在PHP中,use关键字用于什么目的",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],180141378,[66,67,68,69],"true","false","1","0","以下表达式的输出结果是什么? Plain Text$a = true;$b = false;$c = true;$result = ($a && $b) || $c;echo $result",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":24,"type":25},[],180141380,[75,76,77,78],"","Plain Text["a" => "avocado", "b" => "apple"]","Plain Text["a" => "avocado", "b" => "banana"]","错误","以下代码的输出是什么? Plain Text$arr = ["a" => "apple", "b" => "banana"];$arr["a"] = "avocado";print_r($arr)",{"answer":81,"createTime":82,"id":83,"options":84,"question":79,"source":24,"type":25},[],"2025-03-24 16:39:45",180144327,[85,76,77,78],"["a" => "apple", "b" => "banana", "a" => "avocado"]",{"answer":87,"createTime":82,"id":88,"options":89,"question":90,"source":24,"type":91},[],180144328,[],"PHP中,如何声明一个字符串变量并赋值为 "Hello World"",2,{"answer":93,"createTime":82,"id":94,"options":95,"question":96,"source":24,"type":91},[],180144329,[],"如何定义一个常量 PI,并赋值为 A"]