How to Replace A Symbol In A Text String In PHP?

Best PHP String Manipulation Tools to Buy in December 2025

1

PHP Cookbook: Modern Code Solutions for Professional Developers

BUY & SAVE

$32.22 $65.99

Save 51%

2

Kaisi Professional Electronics Opening Pry Tool Repair Kit with Metal Spudger Non-Abrasive Nylon Spudgers and Anti-Static Tweezers for Cellphone iPhone Laptops Tablets and More, 20 Piece

• COMPREHENSIVE 20-PIECE KIT FOR ALL YOUR ELECTRONIC REPAIR NEEDS.

• DURABLE STAINLESS STEEL TOOLS ENSURE LONG-LASTING, RELIABLE PERFORMANCE.

• INCLUDES ESSENTIAL CLEANING TOOLS FOR PRISTINE DEVICE FINISHES.

BUY & SAVE

$11.89

3

PHP: Learn PHP in One Day and Learn It Well. PHP for Beginners with Hands-on Project. (Learn Coding Fast with Hands-On Project Book 6)

BUY & SAVE

$3.99

4

PHP 8 Objects, Patterns, and Practice: Volume 1: Mastering OO Enhancements and Design Patterns

BUY & SAVE

$30.99 $44.99

Save 31%

5

PHP 8 Objects, Patterns, and Practice: Mastering OO Enhancements, Design Patterns, and Essential Development Tools

BUY & SAVE

$59.99

6

iFixit Jimmy - Ultimate Electronics Prying & Opening Tool

• PRECISION CONTROL: ERGONOMIC HANDLE FOR ACCURATE REPAIRS AND DISASSEMBLY.

• VERSATILE USE: IDEAL FOR TECH, HOME PROJECTS, AND VARIOUS REPAIRS.

• LIFETIME WARRANTY: REPAIR CONFIDENTLY WITH OUR UNBEATABLE GUARANTEE.

BUY & SAVE

$7.16 $7.95

Save 10%

7

Expert PHP 5 Tools

BUY & SAVE

$54.99

8

PHP Development Tool Essentials

BUY & SAVE

$18.68 $24.99

Save 25%

9

PHP 8 Objects, Patterns, and Practice: Volume 2: Mastering Essential Development Tools

BUY & SAVE

$42.99

+

ONE MORE?

In PHP, you can use the built-in str_replace() function to replace a symbol in a text string. The syntax for using this function is as follows:

str_replace($search, $replace, $string);

• $search: This parameter specifies the symbol or string you want to find within the text string.
• $replace: This parameter determines what you want to replace the found symbols/strings with.
• $string: This parameter is the original text string in which you want to perform the replacement.

The str_replace() function will return a modified string with the specified symbols/strings replaced.

Here is an example usage:

$text = "Hello, World!"; $updatedText = str_replace(",", "-", $text);

echo $updatedText;

In this example, the comma symbol (",") in the original string is replaced with a hyphen symbol ("-"). The output of the above code would be:

Hello- World!

You can replace any symbol or string within a text by specifying the appropriate values for the three parameters in the str_replace() function.

How can I substitute a character in a string using PHP?

To substitute a character in a string using PHP, you can use the str_replace() function.

The str_replace() function takes three parameters:

1. The character (or substring) you want to replace.
2. The character (or substring) you want to replace it with.
3. The original string.

Here's an example:

$string = "Hello, world!"; $newString = str_replace("o", "x", $string);

echo $newString; // Outputs "Hellx, wxrld!"

In this example, we replace the character "o" with "x" in the original string "Hello, world!" using the str_replace() function. The resulting string is then stored in the $newString variable and printed out.

Note that str_replace() is case-sensitive by default. If you want a case-insensitive replacement, you can use the str_ireplace() function instead.

How to replace a specific character with a different symbol in a text string using PHP?

To replace a specific character with a different symbol in a text string using PHP, you can use the str_replace function. Here's an example:

$text = "Hello World!"; $charToReplace = "o"; $replacementSymbol = "@";

$newText = str_replace($charToReplace, $replacementSymbol, $text); echo $newText;

Output:

Hell@ W@rld!

In the example above, the str_replace function is used to replace all occurrences of the character "o" in the string "Hello World!" with the symbol "@" and store the modified string in the $newText variable. Finally, the modified string is echoed to the output.

How to replace a symbol with a space in a text string using PHP?

To replace a symbol with a space in a text string using PHP, you can use the str_replace() function. This function replaces all occurrences of a substring with another substring within a given string.

Here's an example of how to use str_replace() to replace a symbol with a space:

Output:

Hello This is a sample text.

In the above example, the symbol '!' is replaced with a space using str_replace().

What method should I use to replace a symbol in a text string in PHP?

To replace a symbol in a text string in PHP, you can use the str_replace() function. Here's an example:

$text = "Hello World!"; $replacement = "-"; $modifiedText = str_replace(" ", $replacement, $text);

echo $modifiedText;

In this example, the code replaces all occurrences of space (" ") in the $text variable with the $replacement symbol, and stores the modified text in the $modifiedText variable. Finally, it prints the modified text, which would be "Hello-World!" in this case.

How can I replace a symbol with an uppercase letter in a string using PHP?

In PHP, you can replace a symbol with an uppercase letter in a string using the str_replace function combined with the strtoupper function.

Here's an example:

$string = "hello#world";

// Replace # symbol with an uppercase letter $string = str_replace("#", strtoupper("#"), $string);

echo $string; // Output: helloWORLD

In the above example, the str_replace function replaces the "#" symbol with its uppercase equivalent obtained by using the strtoupper function.