xyzshop/test/TestPHPLan.php

<?php


use PHPUnit\Framework\TestCase;

class TestPHPLan extends TestCase
{
    public function testSlice()
    {
        $specs = ["red", "green", "blue", "yellow", "brown"];

        $count = count($specs);
        for ($length = 1; $length < $count; $length++)
        {
            $low = array_slice($specs,0,$length);
            $high = array_slice($specs,$length);
        }
    }

    public function testFS()
    {
        $str_ends_with = function (string $haystack, string $needle): bool
        {
            if ('' === $needle || $needle === $haystack) {
                return true;
            }

            if ('' === $haystack) {
                return false;
            }

            $needleLength = strlen($needle);

            return $needleLength <= strlen($haystack) && 0 === substr_compare($haystack, $needle, -$needleLength);
        };

        $a = $str_ends_with('huoshenguo','fs');
        $b = 1;
    }

}