以下就是php动态生成函数示例,示例中用到了eval函数,我感觉如果服务器上允许用户运行这样的函数是非常危险的
$a['a']=1;
$a['b']=1;
$a['c']=1;
$str="function a(){global \$a;if(\$a['a']==1 && \$a['b']==1 && \$a['c']==1){return 'OK';}else{return 'ERR';}}";
eval($str);
if(a()=="OK"){
echo "GOOD";
}else{
echo "OH NO";
}
Statement:The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn