How to select only the first link from PHP string?

Question

I tried the following code to get only the first url from the string. But it not working. The print_r($matches[0]); is showing array result. but the echo $matches[0]; is displaying nothing, what went wrong here ? I just want the "https://www.amazon.in/b?node=21021782031&pf_rd_r=Z8266H8XJMQGEZMB0X44&pf_rd_p=00f7186e-02c5-40c7-9f15-9f2d65d70297" to be displayed and remove all other text and links.

<?php
$string = "Samsung Galaxy S20 (Black) https://www.amazon.in/b?node=21021782031&pf_rd_r=Z8266H8XJMQGEZMB0X44&pf_rd_p=00f7186e-02c5-40c7-9f15-9f2d65d70297 afdsfdsf d https://stackoverflow.com/questions/35433139/php-get-only-values-from-an-array and  https://mail.google.com/mail/u/0/#inbox";
$regex = '#https?://[^,\s()<>]+(?:\([\w\d]+\)|([^,[:punct:]\s]|/))#';
preg_match_all($regex, $string, $matches);
echo "<pre>";
print_r($matches[0]);

echo "</br>";

echo $matches[0];
?>

the result should output only the first link from $string like following

https://www.amazon.in/b?node=21021782031&pf_rd_r=Z8266H8XJMQGEZMB0X44&pf_rd_p=00f7186e-02c5-40c7-9f15-9f2d65d70297

Why do you want the echo to show the result? Also change your '' to '' — Rafael Mora, Jun 16 '20 at 02:55
by echo I am just testing the code, the intention is to add it with another larger code. — Shijil, Jun 16 '20 at 02:56
but it shows all the URLs , I just want to get only first URL. — Shijil, Jun 16 '20 at 02:59
Can you write an example of would be the correct and valid output? — Rafael Mora, Jun 16 '20 at 02:59
@RafaelMora, it was mentioned in the question. the result should output only the first link from `$string`. Edited question. — Shijil, Jun 16 '20 at 03:01
@RafaelMora https://www.amazon.in/b?node=21021782031&pf_rd_r=Z8266H8XJMQGEZMB0X44&pf_rd_p=00f7186e-02c5-40c7-9f15-9f2d65d70297 — Shijil, Jun 16 '20 at 03:04
Please confirm that the first link can be separeted by the char '&' — Rafael Mora, Jun 16 '20 at 03:05
@RafaelMora , no the link should be full, it will contain '&' , '=', it is important. — Shijil, Jun 16 '20 at 03:07
@RafaelMora the link begins with "https..." and ends with"....-9f2d65d70297" — Shijil, Jun 16 '20 at 03:08

score 0 · Accepted Answer · answered Jun 16 '20 at 03:11

you can make it this way using explode

$string = "Samsung Galaxy S20 (Black) https://www.amazon.in/b?node=21021782031&pf_rd_r=Z8266H8XJMQGEZMB0X44&pf_rd_p=00f7186e-02c5-40c7-9f15-9f2d65d70297 afdsfdsf d https://stackoverflow.com/questions/35433139/php-get-only-values-from-an-array and  https://mail.google.com/mail/u/0/#inbox";

foreach(explode(" ",$string) as $first_occurrence) {
  if (strpos($first_occurrence, 'http') !== false) { break;}
}

echo $first_occurrence;
//https://www.amazon.in/b?node=21021782031&pf_rd_r=Z8266H8XJMQGEZMB0X44&pf_rd_p=00f7186e-02c5-40c7-9f15-9f2d65d70297

How to select only the first link from PHP string?

1 Answers1