I have a php variable containing some special characters, inside a Codeigniter 3 controller:
page_url = 'search=' . $expression . '&page';
In a template, I use this variable:
In the in the browser I see the characters mentioned above in this form:
posts/search?search%3Dharum%26page=2
The = sign turns to %3D, "&" to %26.
I tried page_url = urldecode($page_url); but it does not work.
How do I keep the original characters?
Please use utf8 decode and try again
echo utf8_decode(urldecode("search%3Dharum%26page=2"));
Try this decode function.
function decode($url)
{
$special = array(
'%21' => '!', '\\' => '%5C', // so on you need to define.
);
foreach($special as $key => $value)
{
$result = str_replace($key, $value, $url);
}
return $result;
}
echo decode("search=%21");
Your problem is not that easy to reproduce. The following rextester demo produces the text in the form you request, using basically your code: http://rextester.com/YTY13099
<?php
$page=2;
$expression='harum';
$page_url = 'posts/search?search=' . $expression . '&page=' . $page;
?>
resulting in
Link
Could it be that the problem is caused by that fact that the script is part of a codeigniter controller? I do not know anything about codeigniter but I can image that further processing takes place there.
Initially if there was one item in the list it would return an object rather than an array of one object. I fixed that using:
https://eirikhoem.wordpress.com/2008/03/13/array-problems-with-soap-and-php-updated/
$x = new SoapClient($wsdl, array('features' => SOAP_SINGLE_ELEMENT_ARRAYS));
But I'm having problems when there is no items in the list.
The best I've come up with so far is:
$occulist = $result->GetWebOccurrencesResult->OccuList;
if (!empty((array)($occulist))) {
foreach($occulist->TOccu as $occurrence) {
echo $occurrence->Prog_Name . ' running from ' . $occurrence->StartDate . ' to ' . $occurrence->EndDate . '<br/>';
}
}
Originally it was
foreach($result->GetWebOccurrencesResult->OccuList->TOccu as $occurrence) {
I don't understand exactly what you're trying to achieve here, so if you can clarify in the comments, that'd be great.
What I'm taking from your question is that you want to handle when the array is empty, but want a clean method to do so? The loop you have there would do what you require, but here is another alternative:
do {
foreach($occulist->TOccu as $occurrence) {
echo $occurrence->Prog_Name . ' running from ' . $occurrence->StartDate . ' to ' . $occurrence->EndDate . '<br/>';
}
} while(empty((array)($occulist)) !== FALSE);
So you're looping through the foreach while the $occulist array isn't empty.
You could even do:
while((array)$occulist !== FALSE) {
foreach(....) {
...
}
}
On my server with Windows and PHP 5.4.23 this:
if (!empty((array)($occulist))) {
gives the following error:
Parse error: syntax error, unexpected '(array)' (array) (T_ARRAY_CAST)
I fixed it using:
if (get_object_vars($occulist)) {
I think that is a more elegant alternative to the original...
I am trying to fetch the content inside a <div> via file_get_contents. What I want to do is to fetch the content from the div resultStats on google.com. My problem is (afaik) printing it.
A bit of code:
$data = file_get_contents("https://www.google.com/?gws_rd=cr&#q=" . $_GET['keyword'] . "&gws_rd=ssl");
preg_match("#<div id='resultStats'>(.*?)<\/div>#i", $data, $matches);
Simply using
print_r($matches);
only returns Array(), but I want to preg_match the number. Any help is appreciated!
Edit: thanks for showing me the right direction! I got rid of the preg_ call and went for DOM instead. Although I am pretty new to PHP and this is giving me an headache; I found this code here on Stack Overflow and I am trying to edit it to get it to work. This far I only receive a blank page, and don't know what I am doing wrong.
$str = file_get_contents("https://www.google.com/search?source=hp&q=" . $_GET['keyword'] . "&gws_rd=ssl");
$DOM = new DOMDocument;
#$dom->loadHTML($str);
//get
$items = $DOM->getElementsByTagName('resultStats');
//print
for ($i = 0; $i < $items->length; $i++)
echo $items->item($i)->nodeValue . "<br/>";
} else { exit("No keyword!") ;}
Posted on behalf of the OP.
I decided to use the PHP Simple HTML DOM Parser and ended up something like this:
include_once('/simple_html_dom.php');
$setDomain = "https://www.google.com/search?source=hp&q=" . $_GET['keyword'] . "&gws_rd=ssl";
$str = file_get_html($setDomain);
$html = str_get_html($str);
$html->find('div div[id=resultStats]', 0)->innertext . '<br>';
Problem solved!
I'm currently using the following method to get coordinates from GoogleMaps.
Can I possibly write this shorter/more efficient?
EDIT 21.06.2013
As of now the old Google Geocoding API is off. This is my modified code that works with the most recent version. I've updated this post, if someone stumbles over it and finds it useful.
public function getGeographicCoordinatesFromGoogle()
{
// create address string
$value = $this->address_line_1 . ' ' .
$this->postal_code . ' ' .
$this->city . ' ' .
$this->country;
$value = preg_replace('!\s+!', '+', $value);
// create request
$request = 'http://maps.googleapis.com/maps/api/geocode/xml?address=' .
$value . '&sensor=false';
// get value from xml request
$xml = file_get_contents($request);
$doc = new \DOMDocument('1.0', 'UTF-8');
#$doc->loadXML($xml);
// fetch result
$result = $doc->getElementsByTagName('lat')->item(0)->nodeValue . ',' .
$doc->getElementsByTagName('lng')->item(0)->nodeValue;
// check result
if (!preg_match('/(-?\d+\.\d+),(-?\d+\.\d+)/', $result) ) {
$result = null;
}
// assign value
$this->setGeographicCoordinates($result);
}
You can use json instead of xml. json is newer, lightweight and object orientated.
I'll recommend you to use http_build_query() instead of trying to build the SearchQuery with Regex. There are other chars which need to be escaped.
This is a quite long method. Maybe it would make sense to have one Class which only handles the communication with GoogleMaps (Class GeoBackend with methods getGeoDataForAddress(), which returns a GeoData-Object, which could be asked for Cordinates etc.)
Is there any native PHP function as highlight_string(); but for javascript ?
Or, if not, is there any PHP function (homemade) to do it?
EDIT: I want to use PHP function to COLORIZE javascript
I have had great success with GeSHi. Easy to use and integrate in your app and it supports a lot of languages.
I understand you want a Syntax Highligher written in PHP. This one (Geshi) has worked for me in the past:
http://qbnz.com/highlighter/
Yes, the PHP function highlight_string() is a native PHP function for PHP.
No.
But there are a lot of javascript libraries that do syntax-highlight on several languages,
from bash-scripting to php and javascript.
eg, like snippet (JQuery) or jQuery.Syntax (my favorite)
Over here you can find an excellent library which enables syntax highlighting in a large amount of languages using javascripts and a css class.
There is no native php function to do this, so either you have to use existing libraries or you have to write something yourself.
Fastest way - you can use also PHP function "highlight_string" with a little trick
(capture function output and remove leading/trailing PHP tags):
$source = '... some javascript ...';
// option 1 - pure JS code
$htmlJs = highlight_string('<?php '.$source.' ?>', true);
$htmlJs = str_replace(array('<?php ', ' ?>'), array('', ''), $htmlJs);
// option 2 - when mixing up with PHP code inside of JS script
$htmlJs = highlight_string('START<?php '.$source.' ?>END', true);
$htmlJs = str_replace(array('START<span style="color: #0000BB"><?php </span>', ' ?>END'), array('', ''), $htmlJs);
// check PHP INI setting for "highlight.keyword" (#0000BB) - http://www.php.net/manual/en/misc.configuration.php#ini.syntax-highlighting
No native function, but rather than using a full stack library just to highlight some javascript you can use this single function :
function format_javascript($data, $options = false, $c_string = "#DD0000", $c_comment = "#FF8000", $c_keyword = "#007700", $c_default = "#0000BB", $c_html = "#0000BB", $flush_on_closing_brace = false)
{
if (is_array($options)) { // check for alternative usage
extract($options, EXTR_OVERWRITE); // extract the variables from the array if so
} else {
$advanced_optimizations = $options; // otherwise carry on as normal
}
#ini_set('highlight.string', $c_string); // Set each colour for each part of the syntax
#ini_set('highlight.comment', $c_comment); // Suppression has to happen as some hosts deny access to ini_set and there is no way of detecting this
#ini_set('highlight.keyword', $c_keyword);
#ini_set('highlight.default', $c_default);
#ini_set('highlight.html', $c_html);
if ($advanced_optimizations) { // if the function has been allowed to perform potential (although unlikely) code-destroying or erroneous edits
$data = preg_replace('/([$a-zA-z09]+) = \((.+)\) \? ([^]*)([ ]+)?\:([ ]+)?([^=\;]*)/', 'if ($2) {' . "\n" . ' $1 = $3; }' . "\n" . 'else {' . "\n" . ' $1 = $5; ' . "\n" . '}', $data); // expand all BASIC ternary statements into full if/elses
}
$data = str_replace(array(') { ', ' }', ";", "\r\n"), array(") {\n", "\n}", ";\n", "\n"), $data); // Newlinefy all braces and change Windows linebreaks to Linux (much nicer!)
$data = preg_replace("/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/", "\n", $data); // Regex identifies all extra empty lines produced by the str_replace above. It is quicker to do it like this than deal with a more complicated regular expression above.
$data = str_replace("<?php", "<script>", highlight_string("<?php \n" . $data . "\n?>", true));
$data = explode("\n", str_replace(array("<br />"), array("\n"), $data));
# experimental tab level highlighting
$tab = 0;
$output = '';
foreach ($data as $line) {
$lineecho = $line;
if (substr_count($line, "\t") != $tab) {
$lineecho = str_replace("\t", "", trim($lineecho));
$lineecho = str_repeat("\t", $tab) . $lineecho;
}
$tab = $tab + substr_count($line, "{") - substr_count($line, "}");
if ($flush_on_closing_brace && trim($line) == "}") {
$output .= '}';
} else {
$output .= str_replace(array("{}", "[]"), array("<span style='color:" . $c_string . "!important;'>{}</span>", "<span style='color:" . $c_string . " !important;'>[]</span>"), $lineecho . "\n"); // Main JS specific thing that is not matched in the PHP parser
}
}
$output = str_replace(array('?php', '?>'), array('script type="text/javascript">', '</script>'), $output); // Add nice and friendly <script> tags around highlighted text
return '<pre id="code_highlighted">' . $output . "</pre>";
}
Usage :
echo format_javascript('console.log("Here is some highlighted JS code using a single function !");') ;
Credit :
http://css-tricks.com/highlight-code-with-php/
Demo :
http://css-tricks.com/examples/HighlightJavaScript/
Well nice info here . Here is another nice one : http://code.google.com/p/google-code-prettify/