摘要： $git init $git add ss.txt $git commit -m "note" $git status $git diff xx.txt $git log --pretty=oneline $git reset --hard HEAD^ $git reflog $git chekou 阅读全文

摘要： <?php $servername = "localhost"; $username = "username"; $password = "password"; $conn = new mysqli($servername, $username, $password); if($conn -> co 阅读全文

摘要： Connect to MySQL PHP5 and later can work with a MySQL database using MySQLi extension PDO PDO will work on 12 different database systems, where as MyS 阅读全文

摘要： The default error handling in PHP is very simple.An error message with filename, line number and a message describing the error is sent to the browser 阅读全文

摘要： PHP filters are used to validate and sanitize external input. Validating data is determine if the data is in proper form. Sanitizing data is remove an 阅读全文

摘要： A session is a way to store information(in variables) to be used across multiple pages.Unlike a cookie, the information is not stored on the users com 阅读全文

摘要： A cookie is often used to identify a user.A cookie is a small file that the server embeds on the user's computer.Each time the same computer requests 阅读全文

摘要： The readfile() functin reads a file and writes it to the output buffer. readfile('filename') A better method to open files is with the fopen() functio 阅读全文

摘要： The include or require statement takes all the text/codde/markup that exists in the specified file and copies it into the file that uses the include s 阅读全文

摘要： The PHP date() function is used to format date and/or a time and formats as timestamp to a more readable data and time. date(format, timestamp) //form 阅读全文