On 1/1/2015 3:28 AM, Sachin Raut wrote:
Happy New Year to all members of PHP group.
I just want to know the difference between following 3 statements. Or are
they all does the same thing.
1. isset($a)
2. !empty($a)
3. $a!=""
Thanks
Sachin
1 - tells you if a var is defined
2 - tells you if the var is null or not yet defined.
3 - using this as an 'if' condition tells you whether a var is 'not
equal' to null
BTW - all of this can be found in the manual online. You should spend
the time to read some of the introductory items.
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