Así que soy bastante nuevo con Cron Jobs y me he topado con un muro al tratar de hacer funcionar este trabajo cron específico. Todo lo que quiero es que se acceda diariamente a una página web de PHP. Al acceder a la página PHP, el trabajo cron activará la secuencia de comandos que envía un correo electrónico a usuarios específicos. Aquí está el código de trabajo cron:

php -q /home/sitename/public_html/scripts/emailnotifications.php

Desafortunadamente, todos los días a la 1AM, recibo este mensaje de error y nadie recibe su correo electrónico.

PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_bz2.dll' - 

C:\xampp\php\ext/php_bz2.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_bz2.dll' - C:\xampp\php\ext/php_bz2.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_mbstring.dll' - C:\xampp\php\ext/php_mbstring.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_mbstring.dll' - C:\xampp\php\ext/php_mbstring.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_exif.dll' - C:\xampp\php\ext/php_exif.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_exif.dll' - C:\xampp\php\ext/php_exif.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_gd2.dll' - C:\xampp\php\ext/php_gd2.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_gd2.dll' - C:\xampp\php\ext/php_gd2.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_gettext.dll' - C:\xampp\php\ext/php_gettext.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_gettext.dll' - C:\xampp\php\ext/php_gettext.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_imap.dll' - C:\xampp\php\ext/php_imap.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_imap.dll' - C:\xampp\php\ext/php_imap.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_mysql.dll' - C:\xampp\php\ext/php_mysql.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_mysql.dll' - C:\xampp\php\ext/php_mysql.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_mysqli.dll' - C:\xampp\php\ext/php_mysqli.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_mysqli.dll' - C:\xampp\php\ext/php_mysqli.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_pdo_mysql.dll' - C:\xampp\php\ext/php_pdo_mysql.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_pdo_mysql.dll' - C:\xampp\php\ext/php_pdo_mysql.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_pdo_odbc.dll' - C:\xampp\php\ext/php_pdo_odbc.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_pdo_odbc.dll' - C:\xampp\php\ext/php_pdo_odbc.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_pdo_sqlite.dll' - C:\xampp\php\ext/php_pdo_sqlite.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_pdo_sqlite.dll' - C:\xampp\php\ext/php_pdo_sqlite.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_soap.dll' - C:\xampp\php\ext/php_soap.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_soap.dll' - C:\xampp\php\ext/php_soap.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_sockets.dll' - C:\xampp\php\ext/php_sockets.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_sockets.dll' - C:\xampp\php\ext/php_sockets.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_sqlite.dll' - C:\xampp\php\ext/php_sqlite.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_sqlite.dll' - C:\xampp\php\ext/php_sqlite.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_sqlite3.dll' - C:\xampp\php\ext/php_sqlite3.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_sqlite3.dll' - C:\xampp\php\ext/php_sqlite3.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_xmlrpc.dll' - C:\xampp\php\ext/php_xmlrpc.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_xmlrpc.dll' - C:\xampp\php\ext/php_xmlrpc.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_ming.dll' - C:\xampp\php\ext/php_ming.dll: cannot open shared object file: No such file or directory in Unknown on line 0
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<b>Warning</b>:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext/php_ming.dll' - C:\xampp\php\ext/php_ming.dll: cannot open shared object file: No such file or directory in <b>Unknown</b> on line <b>0</b><br />
PHP Warning:  Cannot open 'C:\xampp\php\extras\browscap.ini' for reading in Unknown on line 0
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<b>Warning</b>:  Cannot open 'C:\xampp\php\extras\browscap.ini' for reading in <b>Unknown</b> on line <b>0</b><br />
No input file specified.

No tengo acceso de shell al servidor ni acceso a ningún archivo de configuración del servidor (excepto php.ini). ¿Qué debo hacer para que este script se ejecute diariamente?