PHP String Handling
PHP String
A string is a sequence of characters, like “Hello PHP!”.
<?php
$s = "Hello PHP!";
echo $s;
?>Run : http://ideone.com/vAUlM5
Hello PHP!
PHP String Functions
Get The Length of a String using strlen() Function
The PHP strlen() function returns the length of a string.
<?php
echo strlen("Hello PHP!");
?>Run : http://ideone.com/GXnHx2
10
Count The Number of Words in a String using word_count() Function
<?php
echo str_word_count("Hello PHP!");
?>2
Reverse a String using strrev() Function
The PHP strrev() function reverses a string:
<?php
echo strrev("Hello PHP!");
?>Run : http://ideone.com/E3puUo
!PHP olleH
Search For a Specific Text Within a String using strpos() Function
The PHP strpos() function searches for a specific text within a string.
If a match is found, the function returns the character position of the first match. If no match is found, it will return FALSE.
<?php
echo strpos("Hello PHP!", "PHP");
?>Run : http://ideone.com/daQuxN
6
Replace Text Within a String using str_replace() Function
The PHP str_replace() function replaces some characters with some other characters in a string.
<?php
echo str_replace("world","Peter","Hello world!");
?>
Run : http://ideone.com/AFs0DW
Hello Arvin!
Converts String into Uppercase using strtoupper() Function
This String function converts all letters of String into Uppercase.
<?php
echo strtoupper("it should be in uppercase");
?>Run : http://ideone.com/Obs3B2
IT SHOULD BE IN UPPERCASE
Converts String into Lowercase using strtolower() function
This String function converts all letters of String into Uppercase.
<?php
echo strtolower("IT SHOULD BE IN LOWERCASE");
?>Run : http://ideone.com/kITJOT
it should be in lowercase
Capitalize the first letter of each word using ucwords() Function
This function is used to capitalized the first letter of each word in String.
<?php
echo ucwords("it should be in uppercase");
?>Run : http://ideone.com/83vvyF
It Should Be In Uppercase
Remove the Whitespace using trim() Function
This function is only removing the whitespace at the start and end of the String.
<?php
echo trim(" remove the whitesapce from start and end of the string ");
?>Run : http://ideone.com/W0gD3v
remove the whitesapce from start and end of the string
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