*
* ```
*
* @param string $htmlContent The HTML content
* @return string The HTML content with all ocurrences replaced
*/
function backgroundToImg($htmlContent)
{
$regex = '/background-image[ ]{0,}:[ ]{0,}url\([\'"]{0,}(.*?)[\'"]{0,}\)/';
$htmlContent = str_get_html($htmlContent);
foreach ($htmlContent->find('*') as $element) {
if (preg_match($regex, $element->style, $matches) > 0) {
$element->outertext = 'Post author: John Doe
`
* @param string $start Start delimiter, e.g. `author: `
* @param string $end End delimiter, e.g. `<`
* @return string|bool Extracted string, e.g. `John Doe`, or false if the
* delimiters were not found.
*/
function extractFromDelimiters($string, $start, $end)
{
if (strpos($string, $start) !== false) {
$section_retrieved = substr($string, strpos($string, $start) + strlen($start));
$section_retrieved = substr($section_retrieved, 0, strpos($section_retrieved, $end));
return $section_retrieved;
}
return false;
}
/**
* Remove one or more part(s) of a string using a start and end delmiters
*
* @param string $string Input string, e.g. `foobar`
* @param string $start Start delimiter, e.g. ``
* @return string Cleaned string, e.g. `foobar`
*/
function stripWithDelimiters($string, $start, $end)
{
while (strpos($string, $start) !== false) {
$section_to_remove = substr($string, strpos($string, $start));
$section_to_remove = substr($section_to_remove, 0, strpos($section_to_remove, $end) + strlen($end));
$string = str_replace($section_to_remove, '', $string);
}
return $string;
}
/**
* Remove HTML sections containing one or more sections using the same HTML tag
*
* @param string $string Input string, e.g. `fooads
ads`
* @return string Cleaned String, e.g. `foobar`
*
* This function works by locating the desired tag start, then finding the appropriate
* end by counting opening and ending tags until the amount of open tags reaches zero:
*
* ```
* Amount of open tags:
* 1 2 1 0
* |---------------||---| |----| |----|
* bar
* | <-------- Section to remove -------> |
* ```
*/
function stripRecursiveHTMLSection($string, $tag_name, $tag_start)
{
$open_tag = '<' . $tag_name;
$close_tag = '';
$close_tag_length = strlen($close_tag);
// Make sure the provided $tag_start argument matches the provided $tag_name argument
if (strpos($tag_start, $open_tag) === 0) {
// While tag_start is present, there is at least one remaining section to remove
while (strpos($string, $tag_start) !== false) {
// In order to locate the end of the section, we attempt each closing tag until we find the right one
// We know we found the right one when the amount of " $close_tag_count && $max_recursion > 0);
// We exited the loop, let's remove the section
$string = str_replace($section_to_remove, '', $string);
}
}
return $string;
}
/**
* Convert Markdown into HTML with Parsedown.
*
* @link https://parsedown.org/ Parsedown
*
* @param string $string Input string in Markdown format
* @param array $config Parsedown options to control output
* @return string output string in HTML format
*/
function markdownToHtml($string, $config = [])
{
$Parsedown = new Parsedown();
foreach ($config as $option => $value) {
if ($option === 'breaksEnabled') {
$Parsedown->setBreaksEnabled($value);
} elseif ($option === 'markupEscaped') {
$Parsedown->setMarkupEscaped($value);
} elseif ($option === 'urlsLinked') {
$Parsedown->setUrlsLinked($value);
} else {
throw new \InvalidArgumentException("Invalid Parsedown option \"$option\"");
}
}
return $Parsedown->text($string);
}
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