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ctype_alnum(PHP 4 >= 4.0.4, PHP 5, PHP 7) ctype_alnum — Check for alphanumeric character(s) Description
bool ctype_alnum
( string
$text
)
Checks if all of the characters in the provided string,
Parameters
Return Values
Returns Examples
Example #1 A ctype_alnum() example (using the default locale)
<?php The above example will output: The string AbCd1zyZ9 consists of all letters or digits. The string foo!#$bar does not consist of all letters or digits. Notes
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