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Last active January 7, 2024 11:58
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Test strings for letters, numbers, and special characters. Returns true if they exist, false if they don't. Forked from http://stackoverflow.com/a/9588010/1293256
<?php
// Does string contain letters?
function _s_has_letters( $string ) {
return preg_match( '/[a-zA-Z]/', $string );
}
// Does string contain numbers?
function _s_has_numbers( $string ) {
return preg_match( '/\d/', $string );
}
// Does string contain special characters?
function _s_has_special_chars( $string ) {
return preg_match('/[^a-zA-Z\d]/', $string);
}
?>
@FranyePodolski
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Thanks a lot!

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ghost commented Jul 15, 2018

This is great!

@ertanuj96
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Does there is a way to match each character of "string" against some predefined characters when the "string" is encrpyted which we have to match with the set of predefined characters?

@sin5678
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sin5678 commented Oct 29, 2018

CTRL-C

@AleksandarSavic95
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Great and simple example - Thank You!

@acki
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acki commented Mar 22, 2020

THX

@aacassandra
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Matur Nuhun Bosku...

@wordpressyu
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and test string for a brace ( i.e, { ) ?

@wordpressyu
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test for brace ?

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