How can case sensitivity impact the results of the glob function in PHP?

Case sensitivity can impact the results of the glob function in PHP because by default, it is case-sensitive. This means that if you are searching for files with a specific case in the file name, you may not get the desired results if the case does not match exactly. To solve this issue, you can use the GLOB_BRACE flag along with the GLOB_NOCASE flag to perform a case-insensitive search. 

$files = glob('path/to/files/{file1,file2,file3}', GLOB_BRACE | GLOB_NOCASE);
foreach($files as $file) {
    echo $file . "\n";
}

Keywords

case sensitivity glob function PHP file system search pattern

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