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IntlChar isdefined() function in PHP
The IntlChar isdefined() function checks whether the entered value is defined or not.
Syntax
bool IntlChar::isdefined (val)
Parameters
val − An integer or character encoded as a UTF-8 string.
Return
The IntlChar isdefined() function returns TRUE if val is a defined character.
Example
The following is an example −
<?php
var_dump(IntlChar::isdefined("Z"));
echo "<br>";
var_dump(IntlChar::isdefined(" "));
echo "<br>";
var_dump(IntlChar::isdefined("HJHK"));
echo "<br>";
var_dump(IntlChar::isdefined("89"));
?>Output
The following is the output −
bool(true) bool(true) NULL NULL
Updated on: 31-Dec-2019
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