Introduction to the meaning and usage of && in php

&& is a relational operator in php.

The relational operators in php are: && (and), || (or), xor (or),! (No).

Note: && represents the relationship between "and" and "AND". The result is true only when both sides of the operator are true.

Example:

$x && $y

Return true only if $x and $y are both true.

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