27 PHP Isset Functions | PHP Complete Course | PHP Tutorials For Beginners In Urdu

Опубликовано: 11 Апрель 2026
на канале: Rahber Academy

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27 PHP Isset Functions | PHP Complete Course In Urdu And Hindi | PHP Tutorials For Beginners In Urdu And Hindi By ‪@RahberAcademy‬

This video of this PHP complete course covers PHP Isset Functions. In which an attempt has been made to explain about complete Isset Functions in PHP. Hope you will like this video very much. Don't forget to like the video and subscribe to the channel. Thanks.
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PHP isset() Function Definition and Usage
The isset() function checks whether a variable is set, which means that it has to be declared and is not NULL.

This function returns true if the variable exists and is not NULL, otherwise it returns false.

Note: If multiple variables are supplied, then this function will return true only if all of the variables are set.

Tip: A variable can be unset with the unset() function.

Syntax
isset(variable, ....);

Parameter Values
variable
Required. Specifies the variable to check
...
Optional. Another variable to check

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