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<?php
/**
* Check if the image sizes are larger than necessary
*
* @package Theme Check
*/
/**
* Check if the image sizes are larger than necessary
*/
class Image_Size_Check implements themecheck {
/**
* Error messages, warnings and info notices.
*
* @var array $error
*/
protected $error = array();
/**
* Check that return true for good/okay/acceptable, false for bad/not-okay/unacceptable.
*
* @param array $php_files File paths and content for PHP files.
* @param array $css_files File paths and content for CSS files.
* @param array $other_files Folder names, file paths and content for other files.
*/
public function check( $php_files, $css_files, $other_files ) {
checkcount();
foreach ( $other_files as $other_key => $otherfile ) {
$file = wp_check_filetype_and_ext( $other_key, basename( $other_key ) );
if ( 'image/' !== substr( $file['type'], 0, 6 ) ) {
continue;
}
// Check if the file is larger than 500 KB.
$image_size = filesize( $other_key );
if ( $image_size < 500 * KB_IN_BYTES ) {
continue;
}
$this->error[] = sprintf(
'<span class="tc-lead tc-warning">%s</span>: %s',
__( 'WARNING', 'theme-check' ),
sprintf(
/* translators: %1$s file name. %2$s file size. */
__( '%1$s is %2$s in size. Large file sizes have a negative impact on website performance and loading time. Compress images before using them.', 'theme-check' ),
'<strong>' . tc_filename( $other_key ) . '</strong>',
size_format( $image_size, 1 )
)
);
}
return true;
}
/**
* Get error messages from the checks.
*
* @return array Error message.
*/
public function getError() {
return $this->error;
}
}
$themechecks[] = new Image_Size_Check();