public static Variable::export($var, $prefix = '')
Drupal-friendly var_export().
Parameters
mixed $var: The variable to export.
string $prefix: A prefix that will be added at the beginning of every lines of the output.
Return value
string The variable exported in a way compatible to Drupal's coding standards.
File
- core/lib/Drupal/Component/Utility/Variable.php, line 23
Class
- Variable
- Provides helpers for dealing with variables.
Namespace
Drupal\Component\Utility
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | public static function export($var, $prefix = '') { if (is_array($var)) { if (empty($var)) { $output = 'array()'; } else { $output = "array(\n"; // Don't export keys if the array is non associative. $export_keys = array_values($var) != $var; foreach ($var as $key => $value) { $output .= ' ' . ($export_keys ? static::export($key) . ' => ' : '') . static::export($value, ' ', FALSE) . ",\n"; } $output .= ')'; } } elseif (is_bool($var)) { $output = $var ? 'TRUE' : 'FALSE'; } elseif (is_string($var)) { if (strpos($var, "\n") !== FALSE || strpos($var, "'") !== FALSE) { // If the string contains a line break or a single quote, use the // double quote export mode. Encode backslash, dollar symbols, and // double quotes and transform some common control characters. $var = str_replace(array('\\', '$', '"', "\n", "\r", "\t"), array('\\\\', '\$', '\"', '\n', '\r', '\t'), $var); $output = '"' . $var . '"'; } else { $output = "'" . $var . "'"; } } elseif (is_object($var) && get_class($var) === 'stdClass') { // var_export() will export stdClass objects using an undefined // magic method __set_state() leaving the export broken. This // workaround avoids this by casting the object as an array for // export and casting it back to an object when evaluated. $output = '(object) ' . static::export((array) $var, $prefix); } else { $output = var_export($var, TRUE); } if ($prefix) { $output = str_replace("\n", "\n$prefix", $output); } return $output;} |
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