In this article you will learn how to store and manipulate strings in PHP.
What is String in PHP
A string is a sequence of letters, numbers, special characters, and arithmetic values or combinations of all.
<?PHP
$name = "Jone Doe";
echo "Your name is $name"; // OUTPUT:Your name is Jone Doe
$name = "Jone Doe";
echo 'Your name is $name'; // OUTPUT:Your name is $name
$name = "Jone Doe";
echo "Your name is ". $name; // OUTPUT:Your name is Jone Doe
$name = "Jone Doe";
echo 'Your name is '. $name; // OUTPUT:Your name is Jone Doe
?>Calculating the Length of a String
The strlen() function is used to calculate the number of characters inside a string. It also includes the blank spaces inside the string.
<?php
$my_str = 'Welcome Message';
echo strlen($my_str);
// OUTPUT: 15
?>Counting Number of Words in a String
str_word_count() counts the word from the string.
<?php
$my_str = 'The quick brown fox jumps over the lazy dog.';
echo str_word_count($my_str);
// OUTPUT: 9
?>Replacing Text within Strings
The str_replace() replaces all occurrences of the search text within the target string.
<?php
$my_str = 'If the facts do not fit the theory, change the facts.';
echo str_replace("facts", "truth", $my_str);
//OUTPUT: If the truth do not fit the theory, change the truth.
?>Reversing a String
The strrev() is used to reverse the string.
<?php
$my_str = 'You can do anything, but not everything.';
echo strrev($my_str);
//OUTPUT: .gnihtyreve ton tub ,gnihtyna od nac uoY
?>Hope you understand!
