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<?php
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/**
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* @file
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* Miscellaneous functions.
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*/
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/**
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* Drupal-friendly var_export().
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*
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* @param $var
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* The variable to export.
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* @param $prefix
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* A prefix that will be added at the beginning of every lines of the output.
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*
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* @return
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* The variable exported in a way compatible to Drupal's coding standards.
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*/
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function drupal_var_export($var, $prefix = '') {
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if (is_array($var)) {
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if (empty($var)) {
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$output = 'array()';
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}
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else {
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$output = "array(\n";
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// Don't export keys if the array is non associative.
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$export_keys = array_values($var) != $var;
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foreach ($var as $key => $value) {
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$output .= ' ' . ($export_keys ? drupal_var_export($key) . ' => ' : '') . drupal_var_export($value, ' ', FALSE) . ",\n";
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}
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$output .= ')';
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}
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}
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elseif (is_bool($var)) {
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$output = $var ? 'TRUE' : 'FALSE';
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}
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elseif (is_string($var)) {
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$line_safe_var = str_replace("\n", '\n', $var);
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if (strpos($var, "\n") !== FALSE || strpos($var, "'") !== FALSE) {
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// If the string contains a line break or a single quote, use the
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// double quote export mode. Encode backslash and double quotes and
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// transform some common control characters.
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$var = str_replace(array('\\', '"', "\n", "\r", "\t"), array('\\\\', '\"', '\n', '\r', '\t'), $var);
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$output = '"' . $var . '"';
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}
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else {
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$output = "'" . $var . "'";
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}
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}
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elseif (is_object($var) && get_class($var) === 'stdClass') {
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// var_export() will export stdClass objects using an undefined
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// magic method __set_state() leaving the export broken. This
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// workaround avoids this by casting the object as an array for
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// export and casting it back to an object when evaluated.
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$output = '(object) ' . drupal_var_export((array) $var, $prefix);
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}
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else {
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$output = var_export($var, TRUE);
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}
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if ($prefix) {
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$output = str_replace("\n", "\n$prefix", $output);
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}
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return $output;
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}
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