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Maybe PHP isn't enough here (JavaScript?), but my aim is this:
I want a bit of HTML to show on a page at random, with a chance value I can adjust (1 in 10000, 1 in 1000, etc.) The end result should be after so many refreshes/visits to the page, the HTML will show; my hope is the user will feel it's a random occurrence.
Honestly, I couldn't even articulate this query to Google or StackOverflow or any site to produce a response even close to my desires. I'm also still a novice in PHP, so it didn't help the search.
Just create a random number.
$randomNumber = mt_rand(0, 100);
if ($randomNumber === 0) {
echo 'This will be echoed on average once every 100 times';
}
Related
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Hello friends, how can I add a counter that will count from 1 to 100 and then count from 1 to 100 again after a few minutes? It will be with PHP.
Here is a way to count until 100 in PHP but please make sure you choose your tags right, your question is currently marked as a javascript
question
I know it is related to javascript but your problem doesn't include even a piece of javascript
<?php
while (1){
for ($x = 0; $x <= 100; $x++) {
echo "The number is: $x <br>";
sleep(1);
}
}
?>
I would strongly suggest CRON JOBS for periodic script execution.
But it looks like some school or maybe even for fun task.
So the Answer from #Ramsey above should be sufficient.
(dont forget to kill the infinite process created by while (1))
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I have dynamic data that is pulled from the database.
Something like the following
$aychFour="From the start, community-minded business. Throughout our
25-year history in ABC, we have continually ways to give back.
We with local charities, involvement in numerous activities &
seasonal, as well as hosting in-store events so our guests can also.";
Since I am not sure about the contents of $aychFour, is it possible to find second period(.) in the string and truncate anything after that?
The explode() function can be usefull. You can divide the string in a array with $res=explode(".",$aychFour) and rebuild the string from the array given.
if(count($res)>1){
$aychFour=$res[0].".".$res[1].".";
}
Another approach is to search the second dot with strpos (or a regular expression).
$pos = strpos($aychFour, '.', strpos($aychFour, '.') + 1);
if($pos > 1){
$aychFour=substr($aychFour,0,$pos+1);
}
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I have a web site to analyze Instagram account and create report, and there's a function to display report for a particular dates range.
If I have date selected, then URL become ${base_url}/${date_start}/${date_end} , i.e.:
https://www.example.com/report/account-name/2020-02-01/2020-03-31
I want show historical data only to my premium users, so I need a way to check if URLs contain the value
/${date_start}/${date_end}
If "YES", then I'll show a notice to invite users to upgrade their plan.
I only miss the code to check IF URL contain /${date_start}/${date_end}
How to do that?
ps: dates is always wrotten like YYYY-MM-DD , so this should make thing easier, I suppose.
that is a regular expression you are looking for
if (preg_match('/\/\d\d\d\d-[01]?\d-[0-3]?\d\/\d\d\d\d-[01]?\d-[0-3]?\d/',$_SERVER['REQUEST_URI'])) {
echo 'dates found';
} else {
echo 'dates not found';
}
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I'm trying to generate all possible combinations of a string using PHP. I've searched this site for a while trying to find the right algorithm but I can't seem to find the correct one. To be more specific if i input the string "hi", I want it to return "hi", "ih", "h", "i". But I don't want it to reuse the same characters multiple times. So I wouldn't want "hh" and "ii". Is there an algorithm for this? Thanks!
Dont take this for production:
$string = implode('',array_unique(str_split('helpa')));
$i=0;
while($i++<50000){
$coll[substr(str_shuffle($string),0,mt_rand(1,strlen($string)))]=true;
}
ksort($coll);
print '<pre>';
print_r(array_keys($coll));
Here you can test what you want to get.
In 10000 iteration i was getting 325 combinations from a 5 length string
(what seems all possible combinations)
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How to hide or cut or blur for example car numbers on image?
so if i have thousand of image with cars like this
and i want to get something like this
So in which direction i should work to do this thing? There are default tools for this?
What you need is a face detection tool. For PHP, I know this script:
https://github.com/mauricesvay/php-facedetection
(Here is the detailed usage: http://www.codediesel.com/algorithms/face-detection-in-images-using-php/)
Just for fun, take a look in Google's Algorithm for Maps License Plate Blur tool:
http://static.googleusercontent.com/media/research.google.com/pt-BR//archive/papers/cbprivacy_iccv09.pdf