PHP Image Text Centering
Use imagettfbbox to measure text box and center overlay text on an image.
Processes Threads Coroutines Explained
Simple analogy overview of processes vs threads vs coroutines and when to mix them.
进程 线程 子进程 About Processes,Threads,Coroutine
here is a story to explain what Processes,Threads,Coroutine is,andunderstanding of parallel and concurrent programming 1.Parallel and Concurrent Parallel: simultaneous execution of multiple tasks Concurrent Multiple tasks are executed alternately on the same processor 2.Processesmean program in progress strengths and weaknessesstrengths: more stability and safety weaknesses: require more resource overhead when processe swiching IPC is complex and time-consuming 3.ThreadsThread contained ...
PHP ZIPARCHIVE 压缩文件处理目录结构 PHP ZIPARCHIVE directory structure
PHP ZIPARCHIVE 压缩文件处理目录结构 Prevent directory structure in compressed package $flag = $zip->open($filePath, \ZIPARCHIVE::CREATE);if ($flag!== TRUE) { //if Linux,need check file authorization exit("open file err="+$flag);}//add test.php to zip file $zip->addFile('test.php');// run rename$zip->renameName('test.php','test.php');
PHP ZipArchive Add File Path Handling
Control internal directory structure when adding files to a ZipArchive.
async await promise demo
async await promise 实例 video demo function step1(query) { return new Promise((success) => { let waiting=2000; setTimeout(() => { success('wait-time:'+waiting+' step:'+query); }, waiting); });}function step2(query) { return new Promise((success) => { let waiting=1000; setTimeout(() => { success('wait-time:'+waiting+' step:'+query)...
Async Await Promise Demo
Sequential async steps with decreasing latency using await.