CODEWITHSUNDEEP
phpreplace
user16648336
user16648336

Reputation:

str_replace returns empty string after replace

I am trying to replace my custom short codes, but function str_replace return empty.

I have a fixed list of search.

$search = array(15) {
  [0]=>
  string(13) "{{user_name}}"
  [1]=>
  string(17) "{{ticket_number}}"
  [2]=>
  string(15) "{{ticket_link}}"
  [3]=>
  string(18) "{{ticket_subject}}"
  [4]=>
  string(22) "{{ticket_description}}"
}

$replace = array(1) {
  [0]=>
  string(23) "ticket with attachments"
}


$subject = string(20) "{{ticket_subject}}"

echo str_replace($search, $replace, trim($subject));

Why the result is empty?

Upvotes: 0

Views: 678

Answers (2)

user8034901
user8034901

Reputation:

Make $replace a string if you want all elements from $search replaced with the same string.

From the documentation: "If search is an array and replace is a string, then this replacement string is used for every value of search."

<?php
$search = [
    "{{user_name}}",
    "{{ticket_number}}",
    "{{ticket_link}}",
    "{{ticket_subject}}",
    "{{ticket_description}}",
];
$replace = "ticket with attachments";
$subject = "{{ticket_subject}}";
echo str_replace($search, $replace, $subject);

Edit: different approach using array:

<?php
$replacements = [
    "{{user_name}}" => 'Roman',
    "{{ticket_number}}" => 1234567890,
    "{{ticket_link}}" => 'url.com',
    "{{ticket_subject}}" => 'Hello World',
    "{{ticket_description}}" => 'foo bar',
];

$search = array_keys($replacements);
$replace = array_values($replacements);

$subject = "Dear {{user_name}}, we received your ticket #{{ticket_number}} with subject {{ticket_subject}}({{ticket_description}}). As a reminder, {{user_name}}, please close your ticket #{{ticket_number}}";
echo str_replace($search, $replace, $subject);

will output:

Dear Roman, we received your ticket #1234567890 with subject Hello World(foo bar). As a reminder, Roman, please close your ticket #1234567890

Upvotes: 2

Bert Bijn
Bert Bijn

Reputation: 337

According to the PHP documentation:

If replace has fewer values than search, then an empty string is used for the rest of replacement values

Your search array has more values than your replace array.

(https://www.php.net/manual/en/function.str-replace.php)

Upvotes: 0

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