undefined-index

问题 I'm running a PHP script and continue to receive errors like: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 Notice: Undefined index: my_index C:\wamp\www\mypath\index.php on line 11 Line 10 and 11 looks like this: echo "My variable value is: " . $my_variable_name; echo "My index value is: " . $my_array["my_index"]; What is the meaning of these error messages? Why do they appear all of a sudden? I used to use this script for years and I've never had

来源： https://stackoverflow.com/questions/64018657/resolving-notice-wpdbprepare-was-called-incorrectly-and-undefined-index-on-ba

问题 I'm running a PHP script and continue to receive errors like: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 Notice: Undefined index: my_index C:\wamp\www\mypath\index.php on line 11 Line 10 and 11 looks like this: echo "My variable value is: " . $my_variable_name; echo "My index value is: " . $my_array["my_index"]; What is the meaning of these error messages? Why do they appear all of a sudden? I used to use this script for years and I've never had

问题 I'm running a PHP script and continue to receive errors like: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 Notice: Undefined index: my_index C:\wamp\www\mypath\index.php on line 11 Line 10 and 11 looks like this: echo "My variable value is: " . $my_variable_name; echo "My index value is: " . $my_array["my_index"]; What is the meaning of these error messages? Why do they appear all of a sudden? I used to use this script for years and I've never had

问题 I'm running a PHP script and continue to receive errors like: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 Notice: Undefined index: my_index C:\wamp\www\mypath\index.php on line 11 Line 10 and 11 looks like this: echo "My variable value is: " . $my_variable_name; echo "My index value is: " . $my_array["my_index"]; What is the meaning of these error messages? Why do they appear all of a sudden? I used to use this script for years and I've never had

问题 This question already has answers here : “Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP (28 answers) Closed 9 days ago . I'm trying to troubleshoot an error with <mail> not being sent. Long story short - I've added this error handler, to the contact form. It's reporting the following:- E_NOTICE Error in file �EmailScript.php� at line 72: Undefined index: action The error was at line 66 but I've added what I thought was the solution:- lines 65

问题 I am using OpenCart 1.4.9 and I have been dealing with Undefined index Errors in product.php recently, I suspect it happens every time the user is creating/input a new product on the dashboard. How to fix these errors because it makes the server resource overload, my site resource usage peaked at 91% sometimes 100% on the cPanel? Here is the model file. Here is the controller file. Here are the errors I am getting: PHP Notice: Undefined index: model in /home/xxx/public_html/admin/controller

问题 I am using OpenCart 1.4.9 and I have been dealing with Undefined index Errors in product.php recently, I suspect it happens every time the user is creating/input a new product on the dashboard. How to fix these errors because it makes the server resource overload, my site resource usage peaked at 91% sometimes 100% on the cPanel? Here is the model file. Here is the controller file. Here are the errors I am getting: PHP Notice: Undefined index: model in /home/xxx/public_html/admin/controller

问题 I'm setting my cookie properly in my code, for example: $expire = time()+60*60*24*30; setcookie("userid", 27, $expire); But then when I attempt to access the cookie to use it's value ( $userid = $_COOKIE['userid']; ), I keep receiving, "undefined index: userid" If I check my browser's (in this case, Firefox) cookies I can clearly see that my cookie is there and set: Any and all assistance is appreciated...this is driving me insance. Thanks! 回答1: I see that cookie has 'path' attribute set to

问题 I'm setting my cookie properly in my code, for example: $expire = time()+60*60*24*30; setcookie("userid", 27, $expire); But then when I attempt to access the cookie to use it's value ( $userid = $_COOKIE['userid']; ), I keep receiving, "undefined index: userid" If I check my browser's (in this case, Firefox) cookies I can clearly see that my cookie is there and set: Any and all assistance is appreciated...this is driving me insance. Thanks! 回答1: I see that cookie has 'path' attribute set to