php – Composer not installing-ThrowExceptions

Exception or error:

I have installed windows 10 on my pc and when I installing composer it shows:

The PHP exe file you specified did not run correctly:
D:\Xampp\php\php.exe

The php.ini used by your command-line PHP is: D:\Xampp\php\php.ini

A setting in your php.ini could be causing the problem: Either the ‘extension_dir‘ value is incorrect or the dll does not exist.

Program Output:

    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_bz2.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_curl.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_fileinfo.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_gd2.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_gettext.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_mbstring.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_exif.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_mysql.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_mysqli.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_openssl.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_pdo_mysql.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_pdo_sqlite.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '\xampp\php\ext\php_openssl.dll' - The specified module could not be found.
     in Unknown on line 0
    PHP Warning:  Cannot open '\xampp\php\extras\browscap.ini' for reading in Unknown on line 0
How to solve:

May I know do you run it by administrator powershell during the installation,

if yes please check those extensions whether exist or not,

and does install correctly :
https://getcomposer.org/doc/00-intro.md#using-the-installer

C:\bin>echo @php "%~dp0composer.phar" %*>composer.bat

The @php does it point to your php of xampp? You can check .

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