IntlChar::isalpha() function in PHP

The IntlChar::isalpha() function is used to check the given input is an alphanumeric character or not.

Syntax

IntlChar::isalpha( $val )

Parameters

• val − An integer values or character encoded as a UTF-8 string.Required.

Return

The IntlChar::isalpha() function returns TRUE if the val is alphanumeric character.

Example

The following is an example −

<?php
   var_dump(IntlChar::isalpha("7"));
   echo "<br>";
   var_dump(IntlChar::isalpha("M"));
?>

Output

The following is the output −

bool(false)
bool(true)

Example

Let us see another example wherein we are checking for alphanumeric characters −

<?php
   var_dump(IntlChar::isalpha("Amit"));
   echo "<br>";
   var_dump(IntlChar::isalpha("Jacob87876"));
   echo "<br>";
   var_dump(IntlChar::isalpha("87876"));
   echo "<br>";
   var_dump(IntlChar::isalpha("A"));
?>

Output

The following is the output −

NULL
NULL
NULL
bool(true)

Karthikeya Boyini

Published on 21-Feb-2019 18:06:08