Differences between using! empty or! == ""

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Differences between using! empty or! == ""

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What would be the difference between validating states in two ways:

if(!empty($_POST['miName']{
}

if($_POST['miName'] !== ""{
}

php

asked by AndresGonzalez 10.04.2018 в 00:58

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1 answer

convert an array to an integer Appropriate permissions to system tables in SQL Server for reverse engineering in java hibernate

score 0 · Answer 1

With empty you can include this:

"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array () (an empty array)
$ var; (a declared variable, but without a value)

Quoting the response of @ J.Correa in the publication How and when are isset () and empty () used correctly?

And with ! == "" you are strictly comparing both sides for your VALUE and TYPE. The result will be true if VALUE or TYPE is inconsistent, in which you will be validating if in _ $ POST there is an empty string