php check string

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showing results for - "php check string"
Jessica
31 Jun 2018
1is_string($var)
Yannic
24 Feb 2018
1
2<?php
3$mystring 'abc';
4$findme   'a';
5$pos = strpos($mystring$findme);
6
7// Note our use of ===.  Simply == would not work as expected
8// because the position of 'a' was the 0th (first) character.
9if ($pos === false) {
10    echo "The string '$findme' was not found in the string '$mystring'";
11else {
12    echo "The string '$findme' was found in the string '$mystring'";
13    echo " and exists at position $pos";
14}
15?>
16
17
Asma
06 Jul 2016
1$haystack = 'This is my haystack that we shall check'
2$has_A = strpos($haystack, 'A') !== false;
3$has_a = strpos($haystack, 'a') !== false;
4
Victoria
21 Oct 2018
1// if you want to test content of a string to match a model
2
3//You should use a regex filter with preg_match who returns 1 or 0
4
5// this filter works for most of cases
6
7/* use this regex */ preg_match("/^[a-z ,.'-]+$/i", your_string);
8
9if you want more regex filters you can make yours on 'https://regex101.com/'
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