float (数値) から int への暗黙的な変換では精度が失われます

Question

php8.1 <?php$number=0;echolog10(abs($number))/3|0;echoPHP_EOL;$number=100;echolog10(abs($number))/3| 0;echoPHP_EOL より前にこの式を使用しました;$number=1100;echolog10(abs($number))/3|0;echoPHP_EOL;$number=10000000;e

P粉043295337 · Answer

// Implicit variant
$number= "2";
$calc = 2 + $number;

// Cast variant
$number = "2";
$calc= 2 + (int) $number;

// Explicit variant
$number = "2";
$calc = 2 + intval($number);

// Everything is good variant ^^
$number = 2;
$calc = 2 + $number;