requirements.php
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<?php
/**
* Application requirement checker script.
*
* In order to run this script use the following console command:
* php requirements.php
*
* In order to run this script from the web, you should copy it to the web root.
* If you are using Linux you can create a hard link instead, using the following command:
* ln ../requirements.php requirements.php
*/
// you may need to adjust this path to the correct Yii framework path
$frameworkPath = dirname(__FILE__) . '/vendor/yiisoft/yii2';
if (!is_dir($frameworkPath)) {
echo '<h1>Error</h1>';
echo '<p><strong>The path to yii framework seems to be incorrect.</strong></p>';
echo '<p>You need to install Yii framework via composer or adjust the framework path in file <abbr title="' . __FILE__ . '">' . basename(
__FILE__
) . '</abbr>.</p>';
echo '<p>Please refer to the <abbr title="' . dirname(
__FILE__
) . '/README.md">README</abbr> on how to install Yii.</p>';
}
require_once( $frameworkPath . '/requirements/YiiRequirementChecker.php' );
$requirementsChecker = new YiiRequirementChecker();
$gdMemo = $imagickMemo = 'Either GD PHP extension with FreeType support or ImageMagick PHP extension with PNG support is required for image CAPTCHA.';
$gdOK = $imagickOK = false;
if (extension_loaded('imagick')) {
$imagick = new Imagick();
$imagickFormats = $imagick->queryFormats('PNG');
if (in_array('PNG', $imagickFormats)) {
$imagickOK = true;
} else {
$imagickMemo = 'Imagick extension should be installed with PNG support in order to be used for image CAPTCHA.';
}
}
if (extension_loaded('gd')) {
$gdInfo = gd_info();
if (!empty( $gdInfo[ 'FreeType Support' ] )) {
$gdOK = true;
} else {
$gdMemo = 'GD extension should be installed with FreeType support in order to be used for image CAPTCHA.';
}
}
/**
* Adjust requirements according to your application specifics.
*/
$requirements = [
// Database :
[
'name' => 'PDO extension',
'mandatory' => true,
'condition' => extension_loaded('pdo'),
'by' => 'All DB-related classes',
],
[
'name' => 'PDO SQLite extension',
'mandatory' => false,
'condition' => extension_loaded('pdo_sqlite'),
'by' => 'All DB-related classes',
'memo' => 'Required for SQLite database.',
],
[
'name' => 'PDO MySQL extension',
'mandatory' => false,
'condition' => extension_loaded('pdo_mysql'),
'by' => 'All DB-related classes',
'memo' => 'Required for MySQL database.',
],
[
'name' => 'PDO PostgreSQL extension',
'mandatory' => false,
'condition' => extension_loaded('pdo_pgsql'),
'by' => 'All DB-related classes',
'memo' => 'Required for PostgreSQL database.',
],
// Cache :
[
'name' => 'Memcache extension',
'mandatory' => false,
'condition' => extension_loaded('memcache') || extension_loaded('memcached'),
'by' => '<a href="http://www.yiiframework.com/doc-2.0/yii-caching-memcache.html">MemCache</a>',
'memo' => extension_loaded(
'memcached'
) ? 'To use memcached set <a href="http://www.yiiframework.com/doc-2.0/yii-caching-memcache.html#$useMemcached-detail">MemCache::useMemcached</a> to <code>true</code>.' : '',
],
[
'name' => 'APC extension',
'mandatory' => false,
'condition' => extension_loaded('apc'),
'by' => '<a href="http://www.yiiframework.com/doc-2.0/yii-caching-apccache.html">ApcCache</a>',
],
// CAPTCHA:
[
'name' => 'GD PHP extension with FreeType support',
'mandatory' => false,
'condition' => $gdOK,
'by' => '<a href="http://www.yiiframework.com/doc-2.0/yii-captcha-captcha.html">Captcha</a>',
'memo' => $gdMemo,
],
[
'name' => 'ImageMagick PHP extension with PNG support',
'mandatory' => false,
'condition' => $imagickOK,
'by' => '<a href="http://www.yiiframework.com/doc-2.0/yii-captcha-captcha.html">Captcha</a>',
'memo' => $imagickMemo,
],
// PHP ini :
'phpExposePhp' => [
'name' => 'Expose PHP',
'mandatory' => false,
'condition' => $requirementsChecker->checkPhpIniOff("expose_php"),
'by' => 'Security reasons',
'memo' => '"expose_php" should be disabled at php.ini',
],
'phpAllowUrlInclude' => [
'name' => 'PHP allow url include',
'mandatory' => false,
'condition' => $requirementsChecker->checkPhpIniOff("allow_url_include"),
'by' => 'Security reasons',
'memo' => '"allow_url_include" should be disabled at php.ini',
],
'phpSmtp' => [
'name' => 'PHP mail SMTP',
'mandatory' => false,
'condition' => strlen(ini_get('SMTP')) > 0,
'by' => 'Email sending',
'memo' => 'PHP mail SMTP server required',
],
];
$requirementsChecker->checkYii()
->check($requirements)
->render();