Reduce text that is displayed from the database - php

Question

On the first page I want to limit the $row['opis'] to 100 chars, but user have possibility to type 500 chars, so I need to limit $row['opis'] in first page. How can I do this?
This is my code:
<?php
mysql_connect("localhost","root","123") or die(mysql_error());
mysql_select_db("database") or die(mysql_error());
$strSQL = "SELECT * FROM table_name ORDER BY id DESC";
$rs = mysql_query($strSQL);
while($row = mysql_fetch_array($rs)) {
echo '<div class="col-md-3 col-sm-6 masonry-grid-item">
<div class="listing-item">
<div class="overlay-container">
<img src="images/product-1.png" alt="">
<a href="oglas/index.php?id=' . $row['id'] . '" class="overlay small">
<i class="fa fa-plus"></i>
<span>View Details</span>
</a>
</div>
<div class="listing-item-body clearfix">
<h3 class="title">'. $row['naziv'] .'</h3>
<p>' . $row['opis'] . '</p>
<span class="price">' . $row['tel'] . '</span>
<div class="elements-list pull-right">
<i class="fa fa-heart-o"></i>
Pogledaj
</div>
</div>
</div>
</div>';
}
mysql_close();
?>
Thanks!

Answer 1

You can use mb_strimwidth, to show first 100 characters
<?php
mysql_connect("localhost","root","123") or die(mysql_error());
mysql_select_db("database") or die(mysql_error());
$strSQL = "SELECT * FROM table_name ORDER BY id DESC";
$rs = mysql_query($strSQL);
while($row = mysql_fetch_array($rs)) {
echo '<div class="col-md-3 col-sm-6 masonry-grid-item">
<div class="listing-item">
<div class="overlay-container">
<img src="images/product-1.png" alt="">
<a href="oglas/index.php?id=' . $row['id'] . '" class="overlay small">
<i class="fa fa-plus"></i>
<span>View Details</span>
</a>
</div>
<div class="listing-item-body clearfix">
<h3 class="title">'. $row['naziv'] .'</h3>
<p>' . mb_strimwidth($row["opis"], 0, 100, "") . '</p>
<span class="price">' . $row['tel'] . '</span>
<div class="elements-list pull-right">
<i class="fa fa-heart-o"></i>
Pogledaj
</div>
</div>
</div>
</div>';
}
mysql_close();
?>
Explanation:
mb_strimwidth($YOUR_STRING, 0, 100, "")
0 means that the trim starts from the first character, and 100 is the limit of characters. Fourth option allows you to add something like "..." at the end of the new string.
Edit
You can also use substr but it is counting using bytes, and not characters. So if you are using some multi-byte encoding, like UTF-8 (Greek, Serbian, Romanian etc), you should use mb_strimwidth as above.

Answer 2

NETCreator Thanks a lot!
Answer is add mb_strimwidth($YOUR_STRING, 0, 100, "")...
<?php
mysql_connect("localhost","root","123") or die(mysql_error());
mysql_select_db("database") or die(mysql_error());
$strSQL = "SELECT * FROM table_name ORDER BY id DESC";
$rs = mysql_query($strSQL);
while($row = mysql_fetch_array($rs)) {
echo '<div class="col-md-3 col-sm-6 masonry-grid-item">
<div class="listing-item">
<div class="overlay-container">
<img src="images/product-1.png" alt="">
<a href="oglas/index.php?id=' . $row['id'] . '" class="overlay small">
<i class="fa fa-plus"></i>
<span>View Details</span>
</a>
</div>
<div class="listing-item-body clearfix">
<h3 class="title">'. $row['naziv'] .'</h3>
<p>' . mb_strimwidth($row["opis"], 0, 100, "") . '</p>
<span class="price">' . $row['tel'] . '</span>
<div class="elements-list pull-right">
<i class="fa fa-heart-o"></i>
Pogledaj
</div>
</div>
</div>
</div>';
}
mysql_close();
?>

Answer 3

You can use substr also.. the below code display first 4 characters.
echo substr('abcdef', 0, 4);
output
abcd

Answer 4

#Mile you can do like this to
$text = substr($text,$start,$length);
here $text is your string, $start is your starting point and $length is how long you want to show a string.