php regex

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Mohamed-Ali
14 Jun 2020
1<?php
2// First Verif your regex code with https://regex101.com/
3$str = "Visit W3Schools";
4$pattern = "/w3schools/i";
5echo preg_match($pattern, $str); // Outputs 1
6
7// test email with REGEX
8if (!preg_match("/[-0-9a-zA-Z.+_]+@[-0-9a-zA-Z.+_]+.[a-zA-Z]{2,4}/", $emailAddress)){
9    //Email address is invalid.
10}
11
12// use filter var to valide Email
13if(filter_var($emailAddress, FILTER_VALIDATE_EMAIL)) 
14{
15     //The email address is valid.
16} else{
17     //The email address is invalid.
18}
19
20
21?>
22
Adrienne
18 Mar 2016
1<?php
2//Syntex : int preg_match( $pattern, $input, $matches, $flags, $offset)
3  
4// Declare a variable and initialize it 
5$str = "Check For Testing."; 
6  
7// case-Insensitive search for the word "Check" 
8if (preg_match("/\bCheck\b/i", $str, $match))  
9    echo "Matched!"; 
10else
11    echo "not matched";   
12  
13
14// Output : Matched
15?>
Camelia
14 Mar 2016
1if (preg_match("/\bweb\b/i", "PHP is the web scripting language of choice.")) {
2    echo "A match was found.";
3} else {
4    echo "A match was not found.";
5}
Ana Paula
24 Oct 2016
1if(!preg_match('/^\[a-zA-Z]+$/',$input)) {
2   // String contains not allowed characters ...
3}
Emilia
26 Jan 2020
1preg_match('/(foo)(bar)(baz)/''foobarbaz'$matches, PREG_OFFSET_CAPTURE);
Michela
28 Mar 2020
1preg_match ( string $pattern , string $subject [, array &$matches [, int $flags = 0 [, int $offset = 0 ]]] ) : int
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