null condition in php

// 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.

<?php
    $var = NULL;  
	if (is_null($var)) {
      	echo "yes, is null";
      
    } else {
      	echo "not null";
    }
?>
  

3.8
10
Wim 135 points

                                    is_null (var_name)

3.8 (10 Votes)
0
4.17
6

                                    is_null($foo)

4.17 (6 Votes)
0
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