PHP - Modify Strings

0
8Кб

PHP has a set of built-in functions that you can use to modify strings.


Upper Case

ExampleGet your own PHP Server

The strtoupper() function returns the string in upper case:

$x = "Hello World!";
echo strtoupper($x);
Try it Yourself »

Lower Case

Example

The strtolower() function returns the string in lower case:

$x = "Hello World!";
echo strtolower($x);
Try it Yourself »

Replace String

The PHP str_replace() function replaces some characters with some other characters in a string.

Example

Replace the text "World" with "Dolly":

$x = "Hello World!";
echo str_replace("World", "Dolly", $x);
Try it Yourself »


Reverse a String

The PHP strrev() function reverses a string.

Example

Reverse the string "Hello World!":

$x = "Hello World!";
echo strrev($x);
Try it Yourself »

Remove Whitespace

Whitespace is the space before and/or after the actual text, and very often you want to remove this space.

Example

The trim() removes any whitespace from the beginning or the end:

$x = " Hello World! ";
echo trim($x);
Try it Yourself »

Learn more in our trim() Function Reference.


Convert String into Array

The PHP explode() function splits a string into an array.

The first parameter of the explode() function represents the "separator". The "separator" specifies where to split the string.

Note: The separator is required.

Example

Split the string into an array. Use the space character as separator:

$x = "Hello World!";
$y = explode(" ", $x);

//Use the print_r() function to display the result:
print_r($y);

/*
Result:
Array ( [0] => Hello [1] => World! )
*/
Try it Yourself »

Complete PHP String Reference

For a complete reference of all string functions, go to our complete PHP String Reference.

 
 

 

 

Поиск
Категории
Больше
Другое
PHP Data Types
PHP Data Types Variables can store data of different types, and different data types can do...
От PHP Tutorial 2024-05-17 07:27:24 0 5Кб
Другое
PHP if Operators
Comparison Operators If statements usually contain conditions that compare two values....
От PHP Tutorial 2024-05-17 07:45:46 0 4Кб
Другое
PHP Access Arrays
Access Array Item To access an array item, you can refer to the index number for indexed arrays,...
От PHP Tutorial 2024-05-17 08:02:32 0 8Кб
Другое
PHP Multiline Comments
Multi-line Comments Multi-line comments start with /* and end with */. Any text...
От PHP Tutorial 2024-05-17 07:15:48 0 6Кб
Другое
تطورات التعلم الآلي وتأثيرها على مستقبل العمل
مقدمة: في ظل التطورات السريعة للتكنولوجيا والابتكار، أصبح التعلم الآلي...
От MOHAMED ATTALLAH 2024-05-14 13:56:58 0 7Кб
Sociallez https://sociallez.com