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 $a and $b
==	Equal	$a==$b; If $a and $b have the same key-value pair, then true
===	Congruent	$a= ==$b; If $a and $b have the same key-value pair and the order and type are the same true
!=	Not equal	$a!=$b ; if $a is not equal to $b, then true
		If $a is not equal to $b, then true
Not congruent	$a!===$b;	$a is not equal to $b, then true

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