How to keep only Alphabets in a String in PHP - Step by Step Examples
How to keep only Alphabets in a String in PHP ?
Answer
To keep only alphabets in a string in PHP, you can use the preg_replace() function with a regular expression to remove non-alphabetic characters.
✐ Examples
1 Keep Only Alphabets in "Hello123 World"
In this example,
- We create a string variable
$str1
with a value of"Hello123 World"
. - We use the
preg_replace()
function with a regular expression/[^a-zA-Z]/
to replace non-alphabetic characters with an empty string. - Finally, we echo the modified string
$str1
.
PHP Program
<?php
$str1 = "Hello123 World";
$str1 = preg_replace("/[^a-zA-Z]/", "", $str1);
echo "Modified string: " . $str1;
?>
Output
Modified string: HelloWorld
2 Keep Only Alphabets in "apple@banana"
In this example,
- We create a string variable
$str2
with a value of"apple@banana"
. - We use the
preg_replace()
function with a regular expression/[^a-zA-Z]/
to replace non-alphabetic characters with an empty string. - Finally, we echo the modified string
$str2
.
PHP Program
<?php
$str2 = "apple@banana";
$str2 = preg_replace("/[^a-zA-Z]/", "", $str2);
echo "Modified string: " . $str2;
?>
Output
Modified string: applebanana
Summary
In this tutorial, we learned How to keep only Alphabets in a String in PHP language with well detailed examples.
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