An example method to extract file names from PHP strings

The first type:

Get the file name without suffix and directly upload the code:

It is to use the basename() function directly to return the file name part in the path. The syntax is "basename(path,suffix)", where the parameter suffix represents the file extension. If the file has this parameter, the extension will not be output. Obviously, we set this parameter to be ".php".

<?php
$path = '/public_html/';
$file = basename($path, ".php");
echo $file."\n";

The second type:

Extract the file name with the suffix name, the code is as follows:

We mainly use two functions strrchr and substr in this method.

The strrchr function is used to find the last location of a string in another string and return all characters from that location to the end of the string.

The substr function is used to return part of a string, syntax "substr(string, start, length)".

<?php
$path = '/public_html/';
$file_name = substr(strrchr($path, "/"), 1);
echo $file_name."\n"; // ""

Related instance extensions:

php gets the file name and extension of the url string intercept path

<?php
//Get the id in the link$url ='http:///cjbkscbsd/x_dfsdfs/24454_1_1.html';
function getIdByUrl($url) {
    $id ='';
    $filename =basename($url,".html");
    $id =str_replace('-','_',$filename);
    if(strstr($id,'_')) {
        $conids =explode('_',$id);
        $id =$conids[0];
    }
    return $id;
}
echo getIdByUrl($url).'<hr/>';
 
//Get the full file nameecho basename($url).'<hr/>';
 
//Get the file name without a suffixecho basename($url,".html");
 
?>

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