投稿者: chosuke

<?php

$n = 5.6283;

// echo ceil($n) . PHP_EOL; //6
// echo floor($n) . PHP_EOL; //5
// echo round($n) . PHP_EOL; // 6
// echo round($n, 2) . PHP_EOL; //6

// echo mt_rand(1,6) . PHP_EOL;

// echo max(3,9,4) . PHP_EOL;
// echo min(3,9,4) . PHP_EOL;

echo M_PI . PHP_EOL;
echo M_SQRT2 . PHP_EOL;

https://techplay.jp/column/474

<?php

$input = ‘ こんにちは ‘;
$input = trim($input);

echo mb_strlen($input) . PHP_EOL; //5
echo mb_strpos($input, ‘に’) . PHP_EOL; //2

$input = str_replace(‘にち’, ‘ばん’, $input); //こんばんは
echo $input . PHP_EOL;

<?php

$name = ‘Apple’;
$score = 32.246;

//$info = “[$name][$score]”;
//echo $info . PHP_EOL;

//$info = sprintf(“[%15s][%10.2f]”, $name, $score);
//echo $info . PHP_EOL;

//$info = sprintf(“[%-15s][%10.2f]”, $name, $score);
//echo $info . PHP_EOL;

printf(“[%-15s][%10.2f]” . PHP_EOL, $name, $score);

<?php

function getStats(…$numbers)
{
$total = 0;
foreach ($numbers as $number) {
$total += $number;
}
return [$total, $total / count($numbers)];
}

//print_r(getStats(1,3,5));

//list($sum, $average) = getStats(1,3,5);
[$sum, $average] = getStats(1,3,5);

echo $sum . PHP_EOL;
echo $average .PHP_EOL;