Convert [audio ] to tag in core php

Question

I am in trouble while converting a link to tag . here is

I am trying

[audio mp3=\"https://abcd.com/wp-content/uploads/sites/2/2020/03/classical-demo.mp         


        

Answer 1

The problem is that you are running replace on $a without updating it, so you function replaces < with [ and outputs, then it replaces > with ] but on the original variable, then outputs.

If you update the variable with the result of str_replace it works as intended.

$a = '[audio mp3="https://abcd.com/wp-content/uploads/sites/2/2020/03/classical-demo.mp3"][/audio]';

$a = str_replace("[","<",$a);
$a = str_replace("]",">",$a);
$a = str_replace("audio","a",$a);
$a = str_replace("mp3=","href=",$a);
echo $a;

Edit

Also as @Phil pointed out in a comment your last line will change your file extension, I adjusted the last replace to account for this.

Answer 2

As alternative, to str_replace, perhaps you could use regex?

$x = '[audio mp3="https://abcd.com/wp-content/uploads/sites/2/2020/03/classical-demo.mp3"][/audio]';

preg_match('/"(.*?)"/', $x, $matches);

print_r($matches);

output

Array
(
    [0] => "https://abcd.com/wp-content/uploads/sites/2/2020/03/classical-demo.mp3"
    [1] => https://abcd.com/wp-content/uploads/sites/2/2020/03/classical-demo.mp3
)

Answer 3

I'm not PHP developer, but I think you can use following code:

$a = '[audio mp3="https://abcd.com/wp-content/uploads/sites/2/2020/03/classical-demo.mp3"][/audio]';

$b = str_replace("[","<", $a);
$b = str_replace("]",">", $b);
$b = str_replace("audio","a", $b);
// you need to replace mp3=, not mp3, as you have 2 of it
$b = str_replace("mp3=","href=", $b);

// optional
$b = str_replace("><",">link text<", $b);

echo $b;
exit();

$b will be: <a href="https://abcd.com/wp-content/uploads/sites/2/2020/03/classical-demo.mp3">link text</a>

See it in action thanks to @Phil