How to Solve Issues With String Length In PHP

In this article, you going to see how to solve issue regarding string length in PHP in a detail and step by step.

If you are looking for this topic then your are at a right place.

With the help of String length many issue get solved.

Before going to start with this topic.

What is String Length in PHP and How does it works?

String Length is used to check the length of a string.

Below is syntax of string length.

strlen(string).

Below is the example from which you understand completely.

<?php
$strvar1 = 'Hello world!';
echo strlen($strvar1); // Outputs: 12
echo "<br>";
 
$strvar2 = ' Hello    world! ';
echo strlen($strvar2); // Outputs: 17
?>

One of important point regarding string length is returns NULL when executed on arrays.

The strlen() function return length when successfully executed and return 0 if the string is empty.

How to find string length in PHP without strlen?

There many ways to find the string length without using string function called strlen.

Below with the help of two example you come to understand how to check string length without using strlen.

In First example you can get length of a string using string function but not using strlen.

Let’s have a look with the following example for getting an output string length using string
function string split.

<?php
$string = 'string';
$length = count(str_split($string));
echo $length; 
?>

In the second example you can achieve via using while loop.

<?php
$stings="hello world";
$ctr=0;
while(1){
    if(empty($stings[$ctr])){       
        break;
    }
    $ctr++;
}
echo $ctr; 

?>

How to limit string length in PHP?

There are many ways you can limit string length .

To limit string length we are going to using one of the string function called substr() function.

From below example you come to understand easily

if (strlen($str) > 10)
   $str = substr($str, 0, 7) . '...';

How to read each character of a string in PHP?

To read each character of a string, first convert the string into arrays using function called str_split() function.

This function convert string into array.

In next step loop through newly created array.

From below example you come to understand easily.

<?php
$string = "Hello Everyone";
$array = str_split($string);
foreach ($array as $char) {
 echo $char; //Output : Hello Everyone
}
?>

How to count string length in PHP without using strlen?

There are many ways to count string length not using strlen.

With help below example one can count the string length without using strlen.

<?php
$var = 'Hello';
$i = 0;
while(@$var[$i]) {
    $i++;
}
echo 'Length of ' . $var . ' is ' . $i . '.';
?>

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Conclusion :

Finally, we done with the point of how one can solve issue regarding string length in PHP.

I hope you like this article and if you feel like we missed out on anything, please comment below.