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Using basename

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basename(): Given a string containing the path to a file or directory, this function will return the trailing name component.

This function will return only the last part of an URL 

$url = "http://example.com/project/controller/action/param1/param2";
$parts = basename($url);
// Output: param2

If your URL has more stuff to it and what you need is the dir name containing the file you can use it with dirname() like this: 

$url = "http://example.com/project/controller/action/param1/param2/index.php";
$parts = basename(dirname($url));
// Output: param2
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How to break down an URL:
* How to break down an URL
* Using parse url
* Using explode
* Using basename
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84 Outputting the value of a variable
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88 Manipulating an array
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90 Processing multiple arrays together
91 SPL data structures
92 Comments
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97 HTTP Authentication
98 Recipies
99 BC Math Binary Calculator
100 Docker deployment
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102 APCu
103 Design patterns
104 Secure remember me
105 PHP mysqli
106 PHP built-in server
107 How to break down an URL
108 PSR
109 Contributors