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Laravel 8 Str::upper() {#collection-method}
2021-07-03 16:54:23 更新
Str::upper 函数用于将指定字符串转换为大写：
use Illuminate\Support\Str;
$string = Str::upper('laravel');
// LARAVEL 
Str::upper 函数用于将指定字符串转换为大写：
use Illuminate\Support\Str;
$string = Str::upper('laravel');
// LARAVEL