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   1  <?php
   2  /**
   3   * I18N: WP_Translation_File_PHP class.
   4   *
   5   * @package WordPress
   6   * @subpackage I18N
   7   * @since 6.5.0
   8   */
   9  
  10  /**
  11   * Class WP_Translation_File_PHP.
  12   *
  13   * @since 6.5.0
  14   */
  15  class WP_Translation_File_PHP extends WP_Translation_File {
  16      /**
  17       * Parses the file.
  18       *
  19       * @since 6.5.0
  20       */
  21  	protected function parse_file() {
  22          $this->parsed = true;
  23  
  24          $result = include $this->file;
  25          if ( ! $result || ! is_array( $result ) ) {
  26              $this->error = 'Invalid data';
  27              return;
  28          }
  29  
  30          if ( isset( $result['messages'] ) && is_array( $result['messages'] ) ) {
  31              foreach ( $result['messages'] as $original => $translation ) {
  32                  $this->entries[ (string) $original ] = $translation;
  33              }
  34              unset( $result['messages'] );
  35          }
  36  
  37          $this->headers = array_change_key_case( $result );
  38      }
  39  
  40      /**
  41       * Exports translation contents as a string.
  42       *
  43       * @since 6.5.0
  44       *
  45       * @return string Translation file contents.
  46       */
  47  	public function export(): string {
  48          $data = array_merge( $this->headers, array( 'messages' => $this->entries ) );
  49  
  50          return '<?php' . PHP_EOL . 'return ' . $this->var_export( $data ) . ';' . PHP_EOL;
  51      }
  52  
  53      /**
  54       * Outputs or returns a parsable string representation of a variable.
  55       *
  56       * Like {@see var_export()} but "minified", using short array syntax
  57       * and no newlines.
  58       *
  59       * @since 6.5.0
  60       *
  61       * @param mixed $value The variable you want to export.
  62       * @return string The variable representation.
  63       */
  64  	private function var_export( $value ): string {
  65          if ( ! is_array( $value ) ) {
  66              return var_export( $value, true );
  67          }
  68  
  69          $entries = array();
  70  
  71          $is_list = array_is_list( $value );
  72  
  73          foreach ( $value as $key => $val ) {
  74              $entries[] = $is_list ? $this->var_export( $val ) : var_export( $key, true ) . '=>' . $this->var_export( $val );
  75          }
  76  
  77          return '[' . implode( ',', $entries ) . ']';
  78      }
  79  }