PHP String Exercises : Remove comma(s) from the specified numeric string

Last update on June 02 2025 13:00:34 (UTC/GMT +8 hours)

25. Remove Commas from Numeric String

Write a PHP script to remove comma(s) from the following numeric string.

Sample String : '2,543.12'

Visual Presentation:

PHP String Exercises: Remove comma(s) from the specified numeric string

Sample Solution:

PHP Code:

<?php
$str1 = "2,543.12";
// Define the original string.

$x = str_replace( ',', '', $str1);
// Remove all commas from the original string.

if( is_numeric($x))
// Check if the resulting string is numeric.
{
  echo $x."\n";
  // If numeric, echo the modified string.
}
?>

Sample Output:

2543.12

Explanation:

The above PHP code snippet removes all commas from the string "2,543.12" using the str_replace() function.

str_replace(',', '', $str1) removes all occurrences of the comma , from the original string $str1, resulting in the string '2543.12'.
The is_numeric() function checks if the resulting string $x is numeric.
If $x is numeric, it echoes out the modified string '2543.12'.

So, the output of this code would be 2543.12.

Flowchart :

For more Practice: Solve these Related Problems:

Write a PHP script to remove all commas from a numeric string and convert the result to a floating-point number.
Write a PHP function to clean a monetary string by eliminating commas and then format it with number_format().
Write a PHP program to use str_replace() to strip commas from a price string before performing arithmetic operations.
Write a PHP script to parse a numeric string with commas and output the number without the commas using regex.

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PHP Code Editor:

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