Questions about defining variables

Questions about defining variables Questions about defining variables

phpcn_u81338 2017-12-24 00:35:38 0  2  1212

python - How to define nested variables in flask jinjia2

In jinjia, as shown below, I defined a variable number {code...} file_dict is a dict type variable. I want to reference the key in file_dict to find out the value of the key {{number}} in the file_dict. {Code...} It seems illegal to define it like the above, no...

迷茫 2017-06-22 11:51:50 0  1  1233

Undefined variable in component

My server works in Linux via apache2, but works fine in the development environment via artisan service on a Windows machine. The error is undefined variable $washProgramresources/views/components/expedition-data.blade.php<div>Programa{{$washProgram->name}}</div&

P粉709307865 2023-09-06 10:48:25 0  1  810

Laravel template page variable is undefined?

1. When the page accesses the blad template page, the variable is undefined. 2. Code {code...} 3. It will prompt Undefined variable: flag_result 4. How to solve it? PS: You can return view('importexcel',compact('flag_result','fileType')); in the control layer. I am the first...

天蓬老师 2017-05-31 10:31:47 0  3  991

Java enum variables cannot be defined repeatedly in cases?

I need to assign a value to a variable based on the content of the string, but the variable type is different. My current error is {code...} idea, repeated definition. But this is an enumeration and will not be repeated. How do I accomplish my goal?

黄舟 2017-05-17 10:09:15 0  1  880

报错："Notice: Undefined variable", "Notice: Undefined index", "Warning: Undefined array key", 还有"Notice: Undefined offset" using PHP

I'm running a PHP script but I keep getting errors like this: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 NOTE: Undefined index: my_index at line 11 of C:\wamp\www\mypath\index.php Warning: Undefined array key 'my_index' in C:\wamp\www\mypath\index.php ...

P粉046878197 2023-07-20 11:17:02 0  2  836

Using PHP's "Caution: undefined variable", "Caution: undefined index", "Warning: undefined array key" and "Caution: undefined offset"

I'm running a PHP script and continue to receive errors like this: NOTE: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 NOTE: Undefined index: my_index C:\wamp\www\ mypath\index.php line 11 Warning: Undefined array key 'my_index' in C:\wamp\www\mypath\index.php line ...

P粉851401475 2023-08-23 11:45:50 0  2  495

Reference: What is variable scope, which variables can be accessed from where, and what is an "undefined variable" error?

NOTE: This is a reference question about PHP variable scoping. Please close any other questions matching this pattern as duplicates. In PHP, what is variable scope? Can variables in one .php file be accessed in another file? Why do I sometimes get "undefined variable" errors?

P粉018653751 2023-07-23 19:17:03 0  2  539

Reference: What is variable scope, which variables can be accessed from where and what is an "undefined variable" error?

NOTE: This is a reference question dealing with variable scope in PHP. Please close any of the many questions that fit this pattern as duplicates of this question. What is "variable scope" in PHP? Can variables in one .php file be accessed in another .php file? Why do I sometimes get "...

P粉023650014 2023-10-19 10:50:15 0  2  590

How to pass class-defined variables to class methods in PHP?

I want to pass the value of a variable I defined in a class to its method. I know I can set a default value using the = symbol in the parentheses of the method, but this seems redundant since I already have the variable defined. Is this possible? classCar{var$num_wheels=4;var$model="BMW";f...

P粉436688931 2023-09-13 21:12:48 0  1  553

When grade has no data, an error occurs, prompting "Undefined variable: gradeList"

When grade has no data, an error occurs, prompting "Undefined variable: gradeList", which still needs to be judged. Only then

刘磊 2018-11-05 10:00:42 0  0  1043

Variable in blade is undefined when passing variable from controller Laravel

So I want to return some strings from the model and controller, but it always says undefined variable, although when I check with dd($) it successfully passes a) and dd($b). What did i do wrong? about.blade：@extends('layout.template');@section('homeContainer');<p>{{$a}}</p><br><...

P粉056618053 2023-08-31 15:58:04 0  2  444

php - zend studio does not display warning messages for undefined variables in arrays?

The new version of zend studio (13.6.0) does not display warning messages for undefined variables in arrays. Isn't this the normal situation? Is there something wrong with the configuration somewhere?

学习ing 2017-06-19 09:07:03 0  1  1061

Using variables defined in methods in templates

This is my first time using Vue (v2 not v3) and I've been trying to use variables inside templates (defined inside methods). My simplified code: <template><divclass="container"@mouseover="isHovered=true"@mouseleave="isHovered=false"><divclass=&quo

P粉681400307 2024-04-06 18:10:25 0  2  627

Undefined variable problem in php login system/unity

I get this error: Warning: Undefined variable $loginUser username does not exist in C:\xampp\htdocs\BNP\Login.php on line 21. I tried other fixes but it returns the same error message. Can anyone help? <?php//variablesforconnectingtoDB$servername="localhost";$username="root";$...

P粉322106755 2024-03-29 21:16:04 0  1  392

Design a user class USER. The variables in the class include user name, password and variables that record the number of users. Define class constructors, getters, and setters

Design a user class USER. The variables in the class include username, password and variables that record the number of users. Define the constructor method of the class, the methods for getting and setting passwords, and the methods for displaying user information.

李雅琦 2020-12-21 15:09:28 0  1  1942

Not sure why undefined variable notification trying to get product 'id'; when adding ACF field to custom column?

I have added a custom column to my WooCommerce product page in the admin dashboard, but when trying to populate the column by adding 2 custom ACF field settings for post type -> products, I receive the following error message about each product in it Debug error notifications listed on custom col...

P粉450744515 2024-02-21 13:30:15 0  1  402

javascript - Why are global variables defined in .run() of app.js in Ionic, which can be accessed in the controller of the page, but cannot be accessed after refreshing?

Global variables are predefined using $rootScope.obj1 = {} in the .run() function of app.js. When the program is started for the first time, $rootScope.obj1 can be accessed in the .controller() function of the page. . But after refreshing the page on the browser, the .controller() function of the pa...

怪我咯 2017-06-12 09:22:30 0  1  709

javascript - How does js call a method defined in an object through a variable and pass parameters?

I have defined several methods now and receive a parameter. When accessing a method in this object, how can I access it through a variable? Defining method: {code...} Calling method: {code...} It is known that the properties and methods of the access object can be accessed through "." or &...

typecho 2017-06-12 09:32:18 0  1  552

Smarty counter variable is defined in parent file but incremented and used in child include file

I like to define a counter variable in the parent tpl file (First.tpl) and increment and use it in the child include file (Second.tpl). But the counter is no longer incremented. First.tpl: {assignvar="counter"value=1scope="global"}{foreach...}//iteratesatleast100times{includefile...

P粉523335026 2023-09-01 19:10:23 0  1  483