adspace


How can we determine whether a variable is set?

Answer Posted / Kanishk Kumar Tiwari

In PHP, you can use the `isset()` function to check if a variable is set. It returns `true` if the variable is set and contains any value (including an empty string or NULL). For example: `isset($myVariable);`

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Which variable declarations within a class is invalid in php?

1047


hello all, I need some sample placement papers in lion bridge.. can anyone help me?

2175


What is trait in php?

1065


How to calculate the difference between two dates using php?

1143


What is the current stable version of php? What advance thing in php7?

1094


how to detect a mobile device using php

1173


Name and explain five of the PHP error constants?

1033


What does $_files means?

1162


How to create a web form?

1109


List some features of php that are deprecated in php7?

1021


What is the difference between htmlentities() and htmlspecialchars()?

1090


sort term descripttion form, report and uery

2254


How can we extract string "pcds.co.in" from a string "https://info@pcds.co.in" using regular expression of php? More on reg can you explain

1077


Explain me is it possible to destroy a cookie?

1026


What sized websites have you worked on in the past?

1085