php - Whats the difference between ? : and || -



php - Whats the difference between ? : and || -

what difference there between using ?: conditional operator , || logical or.

i finding code works with:

$screenpixelratio = !empty($_cookie['screenpixelratio']) || $_cookie['screenpixelratio'] || $fallback_pixelratio;

but not:

$screenpixelratio = !empty($_cookie['screenpixelratio']) ? $_cookie['screenpixelratio'] : $fallback_pixelratio;

could please explain why work one, not other.

|| binary operators operators deal 2 arguments

as says check first if true not gonna check farther else check farther

?: ternary operator operator takes 3 arguments. arguments , result can of different types.

expression1 ? expression2 : expression3;

php

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