php_network_getaddresses: getaddrinfo

copy开发者_运维知识库() [function.copy]: php_network_getaddresses: getaddrinfo failed:

When I use

copy("http://example.com/simple.jpg",$target);

that error occur.

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Your server is unable to resolve the name example.com to an ip address, i.e. either the dns server is unreachable or there's a misconfiguration in your webserver's dns client.
How to resolve this issue depends on your operating system (and configuration).

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• copy will only work with URLs if fopen wrappers are active. Most likely they aren't on your system.
• Another probable source of problems might be the server you request that file from just doesn't exist or cannot be resolved via DNS.