The expression $type of type null|string is loosely compared to false; this is ambiguous if the string can be empty. You might want to explicitly use === null instead.
In PHP, under loose comparison (like ==, or !=, or switch conditions),
values of different types might be equal.
For string values, the empty string '' is a special case, in particular
the following results might be unexpected:
''==false// true''==null// true'ab'==false// false'ab'==null// false// It is often better to use strict comparison''===false// false''===null// false
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{
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1
return self::$_notificationArray;
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}
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1
return null;
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}
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/**
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* set the message to notification
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*
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* @since 3.0.0
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*
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* @param string $type type of the notification
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* @param string|array $message message of the notification
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*/
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2
public function setNotification(string $type = null, $message = null) : void
redaxscript /
redaxscript
redaxmedia
In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: