fopen | 易学教程

Using php to write to a log file

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问题 First of I am very very very very bad with php so sorry for this question I have an application in which i would like to log some debug data and through my project i make a webrequest to my site storing the information in $msg i then want to write the data to my logfile.log on the site. i first used fopen fwrite fclose, but heard that file_put_contents would be better especially as i very likely will have several users trying to write to the file at once. Here's the code: $msg = $_GET['w'];

Using php to write to a log file

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Segfault while using fopen

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来源： https://stackoverflow.com/questions/22240817/segfault-while-using-fopen

Segfault while using fopen

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来源： https://stackoverflow.com/questions/22240817/segfault-while-using-fopen

what is the reason for fopen's failure to open a file

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问题 I have the following code where I am trying to open a text file. char frd[32]="word-list.txt"; FILE *rd=fopen(frd,"rb"); if(!rd) std::cout<<"Coudn't open file\t"<<frd; I am using vc 2010 and the file is in the debug directory of this project. Can anyone tell me why it is not able to open the file? 回答1: #include<stdio.h> #include <errno.h> int main() { errno = 0; FILE *fb = fopen("/home/jeegar/filename","r"); if(fb==NULL) printf("its null"); else printf("working"); printf("Error %d \n", errno)

Crazy PHP fopen / fwrite / file_put_contents / move_uploaded_file bug with binary mode writing on CentOS Linux Adding 0x0D to every 0x0A

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问题 Seems the file keeps adding 0x0D to my saved binary files no matter what setting I put in the fopen mode flag. It's not only affecting fopen / fwrite .. but also file_put_contents . file_get_contents I thought was the problem to begin with.. but it turns out this one is actually working okay.. because when I dumped the file using bin2hex() it came out good. I was blaming at first the std::string in C++ for this bug.. but it turns out it doesn't even have anything to do with C++ but it's in

Crazy PHP fopen / fwrite / file_put_contents / move_uploaded_file bug with binary mode writing on CentOS Linux Adding 0x0D to every 0x0A

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Fopen accept self signed certificate

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问题 i would like to get the result of my page in https in a php variable but the fopen fonction return false; i think this error can be product by the ssl certifacte which is self signed fopen("https://192.168.1.1:8443", "rb")) Warning: fopen(): SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed Is it a php ssl configuration to accept all certificate ? 回答1: see Error when loading external xml file with php

php://input 和 fopen

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个人理解：php://input 相当于POST 作用，譬如我提交数据的时候，我截取头文件判断是否是正确的文件类型。 php://input 是个可以访问请求的原始数据的只读流。 $raw_post_data = file_get_contents ( 'php://input' ); 参考资料： http://php.net/manual/zh/wrappers.php.php http://bbs.csdn.net/topics/390387027 判断文件 http://blog.csdn.net/lxzo123/article/details/6701655 php://input 用法 http://zengrong.net/post/1715.htm 来源： oschina 链接： https://my.oschina.net/u/554046/blog/324297

c语言文件读写操作

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c语言读写文件操作函数位于stdio.h头文件读文件：fgetc（按字符）、fgets（按字符串）、fread（按数据块）、fscanf（按指定格式化）; 写文件：fputc（按字符）、fputs（按字符串）、fwrite（按数据块）、fprintf（按指定格式化）; 主要涉及操作函数：fopen、fclose; fopen: 解释：函数原型：FILE * __cdecl fopen(_In_z_ const char * _Filename, _In_z_ const char * _Mode); 说明：参数：_Filename--文件路径、_Mode--文件操作模式（读,写,追加）返回值：文件顺利打开后，指向该流的文件指针就会被返回。如果文件打开失败则返回 NULL ，并把错误代码存在errno 中；（更详细的资料请移步： http://baike.baidu.com/view/656681.htm ） fgetc: 解释：意为从文件指针 stream指向的文件中读取一个字符，读取一个字节后，光标位置后移一个字节；函数原型：int __cdecl fgetc(_Inout_ FILE * _File)；说明：参数：_File--指向FILE类型的指针返回值：返回所读取的一个字节，如果读到文件末尾或者读取出错时返回EOF；例程： void readc