PHP7.3找不到curl

我正在macOS Big Sur（11.2.1）上使用PHP 7.3。
当输入php-version时，我收到以下错误消息：

    php --version                                                                                                                                                        11:12:02
PHP Warning:  PHP Startup: Unable to load dynamic library 'curl' (tried: /usr/local/lib/php/pecl/20180731/curl (dlopen(/usr/local/lib/php/pecl/20180731/curl, 9): image not found), /usr/local/lib/php/pecl/20180731/curl.so (dlopen(/usr/local/lib/php/pecl/20180731/curl.so, 9): image not found)) in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'curl' (tried: /usr/local/lib/php/pecl/20180731/curl (dlopen(/usr/local/lib/php/pecl/20180731/curl, 9): image not found), /usr/local/lib/php/pecl/20180731/curl.so (dlopen(/usr/local/lib/php/pecl/20180731/curl.so, 9): image not found)) in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library 'intl' (tried: /usr/local/lib/php/pecl/20180731/intl (dlopen(/usr/local/lib/php/pecl/20180731/intl, 9): image not found), /usr/local/lib/php/pecl/20180731/intl.so (dlopen(/usr/local/lib/php/pecl/20180731/intl.so, 9): image not found)) in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'intl' (tried: /usr/local/lib/php/pecl/20180731/intl (dlopen(/usr/local/lib/php/pecl/20180731/intl, 9): image not found), /usr/local/lib/php/pecl/20180731/intl.so (dlopen(/usr/local/lib/php/pecl/20180731/intl.so, 9): image not found)) in Unknown on line 0
PHP 7.3.27 (cli) (built: Feb  4 2021 17:29:32) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.27, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.27, Copyright (c) 1999-2018, by Zend Technologies

如何修复错误？

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错误的原因是什么？

我的计算机出了问题。
当我键入php--ini时，我得到以下消息：

php --ini                                                                                                                                                            11:33:04
PHP Warning:  PHP Startup: Unable to load dynamic library 'curl' (tried: /usr/local/lib/php/pecl/20180731/curl (dlopen(/usr/local/lib/php/pecl/20180731/curl, 9): image not found), /usr/local/lib/php/pecl/20180731/curl.so (dlopen(/usr/local/lib/php/pecl/20180731/curl.so, 9): image not found)) in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'curl' (tried: /usr/local/lib/php/pecl/20180731/curl (dlopen(/usr/local/lib/php/pecl/20180731/curl, 9): image not found), /usr/local/lib/php/pecl/20180731/curl.so (dlopen(/usr/local/lib/php/pecl/20180731/curl.so, 9): image not found)) in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library 'intl' (tried: /usr/local/lib/php/pecl/20180731/intl (dlopen(/usr/local/lib/php/pecl/20180731/intl, 9): image not found), /usr/local/lib/php/pecl/20180731/intl.so (dlopen(/usr/local/lib/php/pecl/20180731/intl.so, 9): image not found)) in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'intl' (tried: /usr/local/lib/php/pecl/20180731/intl (dlopen(/usr/local/lib/php/pecl/20180731/intl, 9): image not found), /usr/local/lib/php/pecl/20180731/intl.so (dlopen(/usr/local/lib/php/pecl/20180731/intl.so, 9): image not found)) in Unknown on line 0
Configuration File (php.ini) Path: /usr/local/etc/php/7.3
Loaded Configuration File:         /usr/local/etc/php/7.3/php.ini
Scan for additional .ini files in: /usr/local/etc/php/7.3/conf.d
Additional .ini files parsed:      /usr/local/etc/php/7.3/conf.d/ext-opcache.ini

卷曲扩展已丢失。
当我查看php.ini时，扩展被激活。
除非有其他必要的步骤？
vi/usr/local/etc/php/7.3/php.ini

以下是输出：

⋊> ~ php --ini                                                                                                                                                            11:33:04
PHP Warning:  PHP Startup: Unable to load dynamic library 'curl' (tried: /usr/local/lib/php/pecl/20180731/curl (dlopen(/usr/local/lib/php/pecl/20180731/curl, 9): image not found), /usr/local/lib/php/pecl/20180731/curl.so (dlopen(/usr/local/lib/php/pecl/20180731/curl.so, 9): image not found)) in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'curl' (tried: /usr/local/lib/php/pecl/20180731/curl (dlopen(/usr/local/lib/php/pecl/20180731/curl, 9): image not found), /usr/local/lib/php/pecl/20180731/curl.so (dlopen(/usr/local/lib/php/pecl/20180731/curl.so, 9): image not found)) in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library 'intl' (tried: /usr/local/lib/php/pecl/20180731/intl (dlopen(/usr/local/lib/php/pecl/20180731/intl, 9): image not found), /usr/local/lib/php/pecl/20180731/intl.so (dlopen(/usr/local/lib/php/pecl/20180731/intl.so, 9): image not found)) in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'intl' (tried: /usr/local/lib/php/pecl/20180731/intl (dlopen(/usr/local/lib/php/pecl/20180731/intl, 9): image not found), /usr/local/lib/php/pecl/20180731/intl.so (dlopen(/usr/local/lib/php/pecl/20180731/intl.so, 9): image not found)) in Unknown on line 0
Configuration File (php.ini) Path: /usr/local/etc/php/7.3
Loaded Configuration File:         /usr/local/etc/php/7.3/php.ini
Scan for additional .ini files in: /usr/local/etc/php/7.3/conf.d
Additional .ini files parsed:      /usr/local/etc/php/7.3/conf.d/ext-opcache.ini

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没有找到。可能没有安装curl。或者检查php.ini中的路径。