PHP basic learning array operators

This article will use a table to tell you about the meaning and usage examples of PHP's array operation operators. It has certain learning value. Interested friends can learn about it. I hope it will be helpful.

Arrays can be operated on data that conforms to the type. Array operations are implemented through array operands. See the table below:

Array operation operators

#<> Not equal $a<>$b; ##!== If Note: "" is a union operator, used to merge arrays. If elements with the same subscript appear, the elements in the first array are retained.

##Operators	Meaning	Example
	United	$a $b ; The union of$aand$b
==	Equal	$a==$b; If$aand$bhave the same key-value pair, thentrue
===	Congruent	$a= ==$b; If$aand$bhave the same key-value pair and the order and type are the sametrue
!=	Not equal	$a!=$b ; if$ais not equal to$b, thentrue
		If $ais not equal to$b, thentrue
Not congruent	$a!===$b;	$ais not equal to$b, thentrue

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