PHP - Check if a string contains any of the chars in another string

Question

How can I check if a string contains any of the chars in another string with PHP?

$a = "asd";
$b = "ds";
if (if_first_string_contains_any_of_the_chars_in_second_string($a, $b)) {
    echo "Yep!";
}

So in this case, it should echo, since ASD contains both a D and an S.

I want to do this without regexes.

Use str_split() to split them into arrays, then array_intersect() to identify the matching characters — Mark Baker
– Mark Baker, Commented Nov 29, 2014 at 12:00

Hardik Solanki · Accepted Answer · 2014-11-29 12:07:48Z

14

You can do it using

$a = "asd";
$b = "ds";
if (strpbrk($a, $b) !== FALSE)
    echo 'Found it';
else
    echo "nope!";

For more info check : http://php.net/manual/en/function.strpbrk.php

Second parameter is case sensitive.

answered Nov 29, 2014 at 12:07

Hardik Solanki

3,2151 gold badge21 silver badges30 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

s3c Over a year ago

Also strcspn which will essentially return string position of the first illegal character or false if none exist. Instead of the initial string part up to the first illegal character that is.

voodoo417 · Accepted Answer · 2014-11-29 12:23:58Z

2

+1 @hardik solanki. Also, you can use similar_text ( count/percent of matching chars in both strings).

$a = "asd";
$b = "ds";
if (similar_text($a, $b)) {
  echo "Yep!";
}

Note: function is case sensitive.

edited Nov 29, 2014 at 12:23

answered Nov 29, 2014 at 12:18

voodoo417

12.2k3 gold badges39 silver badges43 bronze badges

Collectives™ on Stack Overflow

PHP - Check if a string contains any of the chars in another string

2 Answers 2

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related