php null

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Salvatore
14 Sep 2017
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
María Alejandra
27 May 2016
1is_null($foo)
source
Naya
02 Nov 2020
1<?php
2  
3	$var = NULL;  
4
5?>
source
Isaac
10 Oct 2018
1is_null (var_name)
Isaure
25 Feb 2019
1is_null($var)
Izidora
09 Jul 2019
1$var = NULL;
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