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@ 2019-02-13T13:22:44Z

<?php

$a = 4;
$b = 3;
var_dump(abs($b-$a) === 1);

$a = 2;
$b = 3;
var_dump(abs($b-$a) === 1);

$a = 1;
$b = 3;
var_dump(abs($b-$a) === 1);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
abs: documentation ( source)

preferences:dark modelive previewkey bindings

105.85 ms | 1599 KiB | 5 Q