Help us understand the problem. What is going on with this user?


```php <?php $str = '<button onClick="alert(\'push_button\')">alert</button>'; //$str = '<button cla...
PHP5.6で書き換えたコード ```php:code.php <?php require __DIR__ . '/vendor/autoload.php'; use mpyw\HardBotte...
``` php composer.phar require mpyw/HardBotter ``` ↑のコマンドでできました!間違ってたっぽいです
``` Problem 1 - This package requires php >=7.0.0 but your PHP version (5.6.30) does not satisfy t...
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