confirmlink.php

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<?php
$vars['data-confirm'] = elgg_extract('confirm', $vars, elgg_echo('question:areyousure'));

$encode = elgg_extract('encode_text', $vars, false);

// always generate missing action tokens
$vars['href'] = elgg_add_action_tokens_to_url(elgg_normalize_url($vars['href']), true);

$text = elgg_extract('text', $vars, '');
if ($encode) {
    $text = htmlspecialchars($text, ENT_QUOTES, 'UTF-8', false);
}

if (!isset($vars['title']) && isset($vars['confirm'])) {
    $vars['title'] = $vars['confirm'];
}

if (isset($vars['class'])) {
    if (!is_array($vars['class'])) {
        $vars['class'] = array($vars['class']);
    }
    $vars['class'][] = 'elgg-requires-confirmation';
} else {
    $vars['class'] = 'elgg-requires-confirmation';
}

unset($vars['encode_text']);
unset($vars['text']);
unset($vars['confirm']);
unset($vars['is_trusted']);

$attributes = elgg_format_attributes($vars);
echo "<a $attributes>$text</a>";