PHP - How To Echo Only Specific Number Of Characters

This is probably a simple one. I just couldn't find a tutorial to the specific thing I'm trying.

I have a string that looks like: "(abbreviated name with.) second abbrev. name."

I'm trying to find a way to break this apart so I can have:

$var1 = "abbreviated name with."
$var2 = "second abbrev. name."

I've looked at substr and a couple others and I'm not sure quite how to do this, because the ')' could be in a differing location.

I have the following code in my index.php:

                   <?php
                    $files = array();
                    $files = glob('download/*.iso');
                    $file = $files[count($files) - 1];
                    $strlen ( string $file ) : int  /* length of $file */
                    $filelen = $strlen -9  /* length of unwanted characters - "download/" */
                    $filename =          /* how do I get the filename starting at the 10th position  */
                   ?>

                     <div class="container">
                        <div class="divL">                       
                            <h3>Get the latest version of FoxClone iso</h3>
                          <a href="<?php echo "/{$file}";?>"><img src="images/button_get-the-app.png" alt="" width="200" height="60"></a>

I'd like to replace "Get the latest version of FoxClone iso" in the next to last line with "Get Foxclone "<?php echo "/{$filename}";?>". How do I extract just the file name from $file? I know that I have to:

1. get the length of $file
2. subtract the number of unwanted character to determine the start character (In this case, start at 10th character)
3. and extract everything from the 10th character to length of $file.

Step 3 is where I just don't know how to accomplish the task. I'd appreciate some help on this.

Thanks in advance,
Larry

I have a large amount of text, (text can be different at any time), I count the number of characters in the string,and divide it by 2 so that half of the text will be in one variable, the other half in the other, however I am not sure how to get the split function, or whichever function to split it by the number of characters.

example:


$text = "lorem ispum dolar sit amet, consecterur adiscing elit. Donec dictum placerat sapien, in eliefend liber";
$cut = strlen($text)/2;
//(here's where i cannot get it to work/do not know which function to use and how to use it)
//but what I want it to do is to split it half way.

Hey folks! Happy what ever you are celebrating

I am trying to limit the number of characters to 200 that this array echos. I have tried a few things... I have tried using "substr($arr_tem, 0, 200)" but obviously it is not working... but I think I am close-ish. Any assistance would be great!
 
Code: [Select]
###print array###
echo (implode(", ", array_keys($arr_tem)));
Thanks!

Hi guys,

How do I call the 2nd row of 'TSuperQuestion'?
Code: [Select]
<?PHP 
$con = mysql_connect("localhost","ph6theo", "xxxx");
if (!$con)
  {
  die('Could not connect: ' . mysql_error("oop"));
  }
mysql_select_db("ph6theo_testDB") or die(mysql_error());
$result = mysql_query("SELECT * FROM QANDATable ");
$row = mysql_fetch_array($result);
echo $row['TSuperQuestion'];
?>

Hello community,

I am working on a database of specialties in the hospital I work.

The doctor's referral requests are sent to a mySQL database and I have, with the help of online guidance, produced a working php script that displays the information I need it to.

However, I need it a little bit more specific.

I intend to make multiple copies of this file for each specialty, so that when they open the file they only have the requests for that particular specialty.

My question is, with reference to my code below, can I make echo information so that online, for instance, if 'specialty1 = gastroenterology' (as in, that particular specialty that that referral request is for), then only the rows on the database that have that particular text are displayed only?

Hope that makes sense.

Code below for your reference and assistance is highly appreciated.

<!DOCTYPE html>
<html>
<head>
<title>Specialty Referral Form</title>
<style>
table {
border-collapse: collapse;
width: 100%;
color: #000000;
font-family: arial;
font-size: 10px;
text-align: center;
}
th {
background-color: #588c7e;
color: white;
}
tr:nth-child(even) {background-color: #f2f2f2}
</style>
</head>
<body>
<table>
<tr>
<th>Patient Details</th>
<th>Hospital Number</th>
<th>Date of Birth</th>
<th>Referred by:</th>
<th>New/Repeat Visit to Patient</th>
<th>Specialty</th>
<th>Admission Date</th>
<th>Too Ill for Clinic?</th>
<th>Diagnosis Aware?</th>
<th>Question</th>
<th>History</th>
<th>Medications</th>
<th>Examination</th>
<th>Results</th>
<th>WorkingDiagnosis</th>
<th>Investigation(s) Requested</th>
</tr>

<?php

$conn = mysqli_connect("localhost", "view", "", "referral");

// Check connection

if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT patientdetails, hospitalnumber, DoB, referral, admission, specialty1, admissiondate, illness, awareness, question, history, medications, examination, results, workingdiagnosis, investigations FROM referralform";
$result = $conn->query($sql);

if ($result->num_rows > 0) {

// output data of each row
while ($row = $result->fetch_assoc()) {
echo "<tr><td>" . $row["patientdetails"]. "</td><td>" . $row["hospitalnumber"] . "</td><td>" . $row["DoB"] . "</td><td>" 
. $row["referral"] . "</td><td>" . $row["admission"] . "</td><td>" . $row["specialty1"] . "</td><td>" . $row["admissiondate"] . "</td><td>"
. $row["illness"] . "</td><td>" . $row["awareness"] . "</td><td>" . $row["question"] . "</td><td>" . $row["history"] . "</td><td>"
 . $row["medications"] . "</td><td>" . $row["examination"] . "</td><td>" . $row["results"] . "</td><td>" . $row["workingdiagnosis"] . "</td><td>"
  . $row["investigations"]. "</td></tr>";
}
echo "</table>";
} else { echo "0 results"; }
$conn->close();
?>
</table>
</body>
</html>

I guess what I am looking for is something like echo specialty1 IF it writes a particular specialty and only that specialty.

Thank you.

Edited April 2, 2020 by samanj

Hello, i retrieve an array from the database that looks something like this:

$var=a:1:{s:2:"cc";a:1:{i:22;s:11:"TESTING";}};

I need to retrieve the number corresponding to the character i: and print it(11 in the first case). 
For example ,
If,
$var=a:1:{s:2:"cc";a:1:{i:15;s:11:"TESTING";}};
I would need to print 15.
$var=a:1:{s:2:"cc";a:1:{i:3;s:11:"TESTING";}};
I would need to print 3.

Thanks in advance.

How could I split a string in half but not in the middle of a word?


$information = "This is the string of text, however at some point in the sentence a word may get split in half.";
$cut = round(strlen($information)/2); ///where to cut (50%)
$split1 = substr($information, 0, $cut); //first half
$split2 = substr($information, $cut); // second half

hey guys i have this invoice im working on but my clients  want's the invoice id start at a specific  number?   do it put that number in phpmyadmin direct on the line null?or can i do it another way?

I'm pretty sure this is really simple to do using the count function, but I am having a hard time finding examples on how to count the number of times a "SPECIFIC" word occurs in a file. For example, I just want to display how many times "this-word" occurs in "http://www.mysite.com/logfile.log". Any help would be appreciated.

How would I write PHP code to echo the number of pictures I have in a folder on my hosting account?   Thanks in advance.

Hi there,

I'm writing an application that pulls from two separate web based APIs, collates the data into a single array of data.  Once done, it then enters a loop that cycles through the array and executes a cURL call for each cycle.  This worked perfectly for a controlled set of 10 artificial records and so I've started testing with live data.

On running the code, I eventually the following :
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.

I'm not sure how to debug this and so I'm hoping I can find some help here.
I'm running WAMP, and the php.ini contains the following:
max_execution_time = 0   ; Maximum execution time of each script, in seconds
max_input_time = 0   ; Maximum amount of time each script may spend parsing request data

Through testing, I have discovered the following :
The script can do exactly 35 iterations through the loop in under 2 minutes.
Any number greater than this causes the error.
If I skip the first 20 curl submits, I can then do 21 to 55 iterations before failure, so I do not believe it is the 36th value.
If I put a sleep(5) command into the loop, I can still do 35 and no more iterations than that.
If I put a sleep(10) command into the loop, it fails on 35 and needs less.

Code: [Select]
$action = "post";
$url = "http://url.url.url/api/v1.0/udo_Position/create"; // I've replaced the actual URL out of necessity

// set user agent {
print("Setting CURL options, using URL ".$url."<br>");
$cd = curl_init();
curl_setopt($cd, CURLOPT_HEADER, 1);
curl_setopt($cd, CURLOPT_URL, $url);
curl_setopt($cd, CURLOPT_USERPWD, 'username:password');
curl_setopt($cd, CURLOPT_RETURNTRANSFER, 1); // Don't send return value to screen
curl_setopt($cd, CURLOPT_USERAGENT, "Firefox/2.0.0.1"); // spoofing FireFox 2.0
curl_setopt($cd, CURLOPT_VERBOSE, true);
// }

if ($action == 'get') {
;
} elseif ($action == 'post') {
print("POST set;<br>");
print("<pre style='font-family:verdana;font-size:13'>");
print_r($pointval);
print("</pre>");
$pointval["save"] = "Save"; // The AddNew step form requires this.

curl_setopt($cd, CURLOPT_POSTFIELDS, $pointval);
} else {
print("Invalid usage. Please see example<br>");
return;
}

$reply = curl_exec($cd);

$http_status = curl_getinfo($cd, CURLINFO_HTTP_CODE);
print("<pre style='font-family:verdana;font-size:13'>");
print_r($http_status);
print("</pre>");

print("Here is the reply from the AddNew function: <br>");
print("<pre style='font-family:verdana;font-size:13'>");
print_r($reply);
print("</pre>");

if (curl_error($cd)) {
print("Error: ".(curl_error($cd))."<br>");
}

curl_close($cd);
print("Insert Successful.<br>");

I am uncertain whether it is a PHP, Apache or cURL issue at this point.  I have another script that pushes a great deal more cURL calls to the same system but pulls from only one external resource, instead of two.  Any help or suggestions would be appreciated.

<ul> <!-- List the rest of the articles found in the category -->
<?php else : ?> 
<li class="otherrecentmain"><span class="title"><a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></span> <span class="meta"></span>
</li>
<?php endif; ?>
<?php endwhile; ?> <!-- END -->
</ul>


For some reason, its stuck on displaying 9 articles but I want to be able to control how many I want. I may want to choose 17 or whatever etc, not sure how to add it into the php.

I have a html table displaying data from mysql database. I can count rows properly with mysql_num_rows but is there a way to echo which row number it is. What I want to do is count the rows ordered by cities and echo row number. Thanks for any help.

How do you do this? Thanks in advance.