在Ubuntu 下运行php，总是提示Call to undefined function curl_init()，原因没有安转：php5-curl

与curl相关的内容见：http://packages.ubuntu.com/zh-cn/intrepid/php5-curl

CURL is a library for getting files from FTP, GOPHER, HTTP server.

PHP5 is an HTML-embedded scripting language. Much of its syntax is borrowed from C, Java and Perl with a couple of unique PHP-specific features thrown in. The goal of the language is to allow web developers to write dinamically generated pages quickly. This version of PHP5 was built with the Suhosin patch.

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(PHP 4 >= 4.0.2)

curl_init -- 初始化一个CURL会话

描述 　

int curl_init ([string url]) 　

curl_init()函数将初始化一个新的会话，返回一个CURL句柄供curl_setopt(), curl_exec(),和 curl_close() 函数使用。如果可选参数被提供，那么CURLOPT_URL选项将被设置成这个参数的值。你可以使用curl_setopt()函数人工设置。
例 1. 初始化一个新的CURL会话，且取回一个网页

<?php
$ch = curl_init();

curl_setopt ($ch, CURLOPT_URL, "http://www.zend.com/");
curl_setopt ($ch, CURLOPT_HEADER, 0);

curl_exec ($ch);

curl_close ($ch);
?>



参见：curl_close(), curl_setopt()