本文整理汇总了PHP中MoodleQuickForm::elementExists方法的典型用法代码示例。如果您正苦于以下问题：PHP MoodleQuickForm::elementExists方法的具体用法？PHP MoodleQuickForm::elementExists怎么用？PHP MoodleQuickForm::elementExists使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MoodleQuickForm的用法示例。
在下文中一共展示了MoodleQuickForm::elementExists方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: while
/**
* Get content of uploaded file.
* @param $element name of file upload element
* @return mixed false in case of failure, string if ok
*/
function get_file_content($elname)
{
if (!$this->is_submitted() or !$this->is_validated()) {
return false;
}
if (!$this->_form->elementExists($elname)) {
return false;
}
if (empty($this->_upload_manager->files[$elname]['clear'])) {
return false;
}
if (empty($this->_upload_manager->files[$elname]['tmp_name'])) {
return false;
}
$data = "";
$file = @fopen($this->_upload_manager->files[$elname]['tmp_name'], "rb");
if ($file) {
while (!feof($file)) {
$data .= fread($file, 1024);
// TODO: do we really have to do this?
}
fclose($file);
return $data;
} else {
return false;
}
}示例2: array
/**
* Internal method. Validates all old-style uploaded files.
*/
function _validate_files(&$files)
{
global $CFG, $COURSE;
$files = array();
if (empty($_FILES)) {
// we do not need to do any checks because no files were submitted
// note: server side rules do not work for files - use custom verification in validate() instead
return true;
}
$errors = array();
$filenames = array();
// now check that we really want each file
foreach ($_FILES as $elname => $file) {
$required = $this->_form->isElementRequired($elname);
if ($file['error'] == 4 and $file['size'] == 0) {
if ($required) {
$errors[$elname] = get_string('required');
}
unset($_FILES[$elname]);
continue;
}
if (!empty($file['error'])) {
$errors[$elname] = file_get_upload_error($file['error']);
unset($_FILES[$elname]);
continue;
}
if (!is_uploaded_file($file['tmp_name'])) {
// TODO: improve error message
$errors[$elname] = get_string('error');
unset($_FILES[$elname]);
continue;
}
if (!$this->_form->elementExists($elname) or !$this->_form->getElementType($elname) == 'file') {
// hmm, this file was not requested
unset($_FILES[$elname]);
continue;
}
/*
// TODO: rethink the file scanning
if ($CFG->runclamonupload) {
if (!clam_scan_moodle_file($_FILES[$elname], $COURSE)) {
$errors[$elname] = $_FILES[$elname]['uploadlog'];
unset($_FILES[$elname]);
continue;
}
}
*/
$filename = clean_param($_FILES[$elname]['name'], PARAM_FILE);
if ($filename === '') {
// TODO: improve error message - wrong chars
$errors[$elname] = get_string('error');
unset($_FILES[$elname]);
continue;
}
if (in_array($filename, $filenames)) {
// TODO: improve error message - duplicate name
$errors[$elname] = get_string('error');
unset($_FILES[$elname]);
continue;
}
$filenames[] = $filename;
$_FILES[$elname]['name'] = $filename;
$files[$elname] = $_FILES[$elname]['tmp_name'];
}
// return errors if found
if (count($errors) == 0) {
return true;
} else {
$files = array();
return $errors;
}
}