php check for null

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Alexandra
11 Aug 2019
1// The is_null() function checks whether a variable is NULL or not. This function returns true (1) if the variable is NULL, otherwise it returns false/nothing.
2
3<?php
4    $var = NULL;  
5	if (is_null($var)) {
6      	echo "yes, is null";
7      
8    } else {
9      	echo "not null";
10    }
11?>
12
source
Ceanna
20 Apr 2017
1is_null($foo)
source
Lorenzo
31 Jul 2016
1<?php
2  
3	$var = NULL;  
4
5?>
Paula
26 Apr 2016
1is_null($var)
Neila
04 Nov 2019
1
2$country = $session?->user?->getAddress()?->country;
3
4
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