I've got a jquery script, which creates a h3 tag and print a variable called result.tbUrl to it. I'd like to explode the variable at "::" and use the 2nd piece.
This is my method.
var link = document.createElement('h3');
link.innerHTML = <?php $link = "result.tbUrl"; $linkpiece = explode("::", $link); echo $pieces[1]; ?>;
Could you tell me please where did i make a mistake?
The first problem is, you're echoing $pieces[1], but exploding your string into $linkpiece which is a different variable.
However, you have a more serious problem: You're setting $link to the string "result.tbUrl". The string doesn't contain the delimiter '::', so exploding it has no effect and $linkpiece will be set to array(0 => 'result.tbUrl'). The line echo $linkpiece[1] will fail regardless, as there is nothing at index 1.
If result.tbUrl is a JavaScript variable, you cannot mix it with server-side PHP this way. You'll have to explode the variable client-side, in JavaScript:
var parts = result.tbUrl.split('::');
link.innerHTML = parts[1];
Related
I am making a price crawler for a project but am running into a bit of an issue. I am using the below code to extract values from an html page:
$content = file_get_contents($_POST['url']);
$resultsArray = array();
$sqlresult = array();
$priceElement = explode( '<div>value I want to extract</div>' , $content );
Now when I use this to get certain elements I only get back
Finance: {{value * value2}}
I want to get the actual value that would be displayed on the screen e.g
Finance: 7.96
The other php methods I have tried are:
curl
file_get_html(using simple_html_dom library)
None of these work either :( Any ideas what I can do?
You just set the <div>value I want to extract</div> as a delimiter, which means PHP looks for it to separate your string to array whenever this occurs.
In the following code we use , character as a delimiter:
<?php
$string = "apple,banana,lemon";
$array = explode(',', $string);
echo $array[1];
?>
The output should be this:
banana
In your example you set the value you want to extract as a delimiter. That's why this happens to you. You'll need to set a delimiter between your string you want to obtain and other string you won't need at the moment.
For example:
<?php
$string = "iDontNeedThis-dontExtractNow-value I want to extract-dontNeedEither";
$priceElement = explode('-', $string);
echo "<div>".$priceElement[2]."</div>";
?>
The code should output this to your HTML page:
<div>value I want to extract</div>
And it will appear on your page like this:
value I want to extract
If you don't need to save the whole array in a variable, you can save the one index of it to variable instead:
$priceElement = explode('-', $string)[2];
echo $priceElement;
This will save only value I want to extract so you won't have to deal with arrays later on.
How do I obtain the asp cookie's name and value using PHP so i may assign it to a variable? PHP and ASP are on the same domain.
Classic Asp Create Cookie
response.cookies("apple")("red")="reddelicious"
response.cookies("apple")("yellow")="gingergold"
response.cookies("apple")("green")="grannysmith"
response.cookies("apple").expires = dateadd("d",2,Now())
Classic ASP Read Cookie
strRed = request.cookies("apple")("red")
strYellow = request.cookies("apple")("yellow")
strGreen = request.cookies("apple")("green")
Reading The ASP cookies with PHP echo
echo $_COOKIE["apple"];
In firebug, after expanding the 'apple' cookie within the console, 'echo $_COOKIE["apple"]' outputs:
red=reddelicious&yellow=gingergold&green=grannysmith
Tried:
$strRed = $_COOKIE["apple"]["red"]; //doesn't work
You could use the parse_str function in php
<?php
parse_str($_COOKIE["apple"], $apple);
echo($apple["red"]);
?>
To get the string red=reddelicious&yellow=gingergold&green=grannysmith to the format of a multi dimensional array try this:
$itemArray = explode('&', $_COOKIE['apple']); // Split variables at '&'
foreach($itemArray as $item){ // for each variable pair 'key=value'
$itemParts = explode('=', $item); // split string to '[key, value]'
$apple[$itemParts[0]] = $itemParts[1]; // set each item to $apple[key] = value;
}
Then you can use the variable like this:
$strRed = $apple["red"]; //should work :)
I have some php code that extracts a web address. The object I have extracted is of the form:
WEBSITE?flage=2&fgast=48&frat=1&sort=D&fsrc=2&wid=bf&page=1&id=16123012&source=searchresults
Now in PHP I have called this object $linkHREF
I want to extract the id element only and put it into an array (I'm bootstrapping this process to get multiple id's)
So the command is:
$detailPagePathArray = explode("id=",$linkHREF); #Array
Now the problem is the output of this includes what comes after the id tag, so the output looks like:
echo $detailPagePathArray[0] = WEBSITE?flage=2&fgast=48&frat=1&sort=D&fsrc=2&w
echo $detailPagePathArray[1] = bf&page=1&
echo $detailPagePathArray[2] = 16123012&source=searchresults
Now the problem is obvious, where it'd firstly picking up the "id" in the "wid" marker and cutting it there, however the secondary problem is it's also picking up all the material after the actual "id". I'm just interested in picking up "16123012".
Can you please explain how I can modify my explode command to point it to the particular marker I'm interested in?
Thanks.
Use the built-in functions provided for the purpose.
For example:
<?php
$url = 'http://www.example.com?flage=2&fgast=48&frat=1&sort=D&fsrc=2&wid=bf&page=1&id=16123012&source=searchresults';
$qs = parse_url($url);
parse_str($qs['query'], $vars);
$id = $vars['id'];
echo $id; // 16123012
?>
References:
parse_url()
parse_str()
if you are sure that you are getting &id=123456 only once in your object, then below
$linkHREF = "WEBSITE?flage=2&fgast=48&frat=1&sort=D&fsrc=2&wid=bf&page=1&id=16123012&source=searchresults";
$str = current(explode('&',end(explode('&id', $linkHREF,2))));
echo "id" .$str; //output id = 16123012
In PHP I'm trying to strip information and store them in $sysver variable from a string named $freply like this:
var id='E8ABFA19FDE2';
var sys_ver='17.37.2.49';
var app_ver='20.9.1.150';
using PHP sscanf with whe following parameters:
sscanf($freply, "var sys_ver='%[^']'", $sysver);
However a blank result in $sysver is all I get.
UPDATE
Working on the first row with:
sscanf($freply, "var id=' %[^']'", $ea);
Gives me a correct result loaded as expected in $ea, that shows E8ABFA19FDE2.
Someone is able to tell me where's the mistake?
Despite I'm using PHP I guess this question is related to Javascript too or any other C-like language.
What you're telling sscanf() is your string is formatted beginning with the literal characters var sys_ver... etc. then you're passing it a string that starts with var id... and it's NOPE'ing right out.
This works:
sscanf($freply, "var id='E8ABFA19FDE2';\nvar sys_ver='%[^']'", $sysver);
or this:
foreach (explode("\n", $freply) as $line) {
if (sscanf($line, "var sys_ver='%[^']'", $sysver)) break;
}
But really sscanf() is not quite the right tool for this job. Just use preg_match():
preg_match("/var sys_ver='([^']+)'/", $freply, $matches);
$sysver = $matches[1];
Im trying to strip find_loc= and &cflt=pizza I got the majority stripped its just these last 2 things and whenever I try to use trim it doesn't delete it out it keeps saying array even when i try to print it, it says array.
<?php
$foo = 'http://www.yelp.com/search?find_loc=2190+W+Washington+Blvd%2C+Los+Angeles+90018&cflt=pizza ';
$blah = parse_url($foo);
$blah[query];
//the code above echos out find_loc=2190+W+Washington+Blvd%2C+Los+Angeles+90018&cflt=pizza
$thids = trim(''.$blah.'','find_loc=');
echo $thids;
?>
$thids = str_replace(array('&cflt=pizza','find_loc='), '', $blah);
parse_str($blah['query'], $query_vars); // decompose query string into components
unset($query_vars['find_loc']); // delete this particular query variable/value
unset($query_vars['cflt']);
$blah['query'] = http_build_query($query_vars); // rebuild the query string
$foo = http_build_url($blah); // rebuild the url