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Posted on 21 Sep, 2020 09:16 am, category: Science & Technology | Web Apps Development |
Check whether a variable is empty in PHP
$a = 0;
// true because variable a is empty.
if(empty($a)){
echo "Variable 'a' is empty";
}
// true because variable a is set.
if(empty($a)){
echo "Variable 'a' is set/declare ";
}
?>
The following values evaluate is empty:
0
0.0
""
NULL
False
array()
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