原因一:未安装graphviz 如果看到 sh: dot: command not found ,说明服务器上没有安装画图软件graphviz 2.yum安装: yum install graphviz 源码安装到这里下载 原因二:php.ini设置了禁用proc_open方法 如果安装好了graphviz,仍然出现”failed to execute cmd”,检查下服务器上的php.ini中disable_functions这项是不是...
那么就是php运行环境有问题了,然后就排查 xhprof的 callgraph.php,最后定位到 xhprof/xhprof_lib/utils/callgraph_utils.php 的 xhprof_generate_image_by_dot 函数 functionxhprof_generate_image_by_dot($dot_script,$type){$descriptorspec=array(// stdin is a pipe that the child will read from0=>array...
另外可以参阅 http://perldoc.perl.org/perlipc.html#Using-open()-for-IPC http://perldoc.perl.org/IPC/Open3.html PHP 首行执行命令,第二行显示输出: @exec(command,output); echo nl2br($output); 注意这里的‘@’防止错误消息的显示,‘nl2br’ 将‘\n’转换为HTML的‘br’ Pop11 sysobey(’ls...
可见是这个proc_open方法执行不成功。于是我便想到php配置文件中的禁用函数:找到php的配置文件:把disable_functions中的proc_open方法去除,重启php解决问题。
make&&makeinstall 1 2 3 4 5 6 7 # 如果出现dot: command not found # 改一下 : xhprof_lib/utils/callgraph_utils.php 中的 # xhprof_generate_image_by_dot函数中的$cmd #改之前 $cmd=" dot -T".$type; #改之后 $cmd=" export LD_LIBRARY_PATH=/home/work/local/graphviz/lib && /home/wo...
I always found the following article to be quite informative to understand the nuances of these: http://www.databasejournal.com/features/msaccess/article.php/3505836/Executing-SQL-Statements-in-VBA-Code.htmDaniel Pineault, 2010-2012 Microsoft MVP http://www.cardaconsultants.com MS ...
Hello, I'm trying to run you sample code (http://ianharvey.github.io/bluepy-doc/scanner.html#sample-code) on my orangepi with a bluetoot v4 dongle, but it doesn"t work. root@orangepipcplus:~# lsusb Bus 008 Device 001: ID 1d6b:0001 Linux ...
错误是int i = Convert.ToInt32(sqlCmd.ExecuteScalar());这句话中说接口未打开,要怎么改? using System;using System.Collections.Generic;using System.ComponentModel;using ***.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.
原因一:未安装graphviz 如果看到 sh: dot: command not found ,说明服务器上没有安装画图软件graphviz 2.yum安装: yum install graphviz 源码安装到这里下载 原因二:php.ini设置了禁用proc_open方法 如果安装好了graphviz,仍然出现”failed to execute cmd”,检查下服务器上的php.ini中disable_functions这项是不是...
JavaLogoMAXScriptObjective-COCamlPerlPHPPop11PythonRavenRubyTclTokaUNIX Shell原文在 http://www.rosettacode.org/wiki/Execute_a_System_CommandAdawith Interfaces.C; use Interfaces.C;procedure Execute_System isfunction Sys (Arg : Char_Array) return Integer;pragma Import(C, Sys, "system");...