Web development is not an easy task. There are many server-side scripting languages available to developers, but currently PHP is becoming more and more popular because of its additional powerful features. PHP is one of the most powerful server-side scripting languages, and it is also the most commonly used language by web developers and designers.
PHP has a lot of tools, including testing and optimization tools, documentation tools, code editors, security tools, and also supports frameworks and online tools. That's why it attracted so many developers to use it in such a short period of time. Tools can always help simplify and speed up the development process. (Recommended learning: PHP video tutorial)
Today we are mainly focusing on the top 8 PHP debugging tools that are most popular among developers. Debugging tools play an important role in the development process. Developers' codes have a particularly large number of lines and may also contain errors. Debugging tools can help developers find these errors and debug the program well.
Pinba: is an open source MySQL storage engine. Its main task is to help web developers monitor the performance of all PHP scripts. Use MySQL as a read-only interface as a PHP real-time monitoring server.
PHP Dyn: is an amazing extension that helps debug PHP scripts. Its main function is to track and execute scripts, and it is also an open source software provided to PHP developers.
Kint: is another one of the best debugging tools for debugging PHP scripts. It is very easy to use, powerful, and can be customized by PHP web developers at will.
PHP MD: Errors can be found in the source code and can be easily solved using a limited set of defined rules.
PHP Debug Bar: is another great PHP debugging tool that can display pst data of web applications.
Whoops: is a more efficient PHP debugging library that helps developers build and maintain their projects to make them better. Whoops is also an open source software with many outstanding features.
Xdebug: is an extension provided to PHP users, with many advanced features and different types of updates every moment.
Krumo: is an outstanding representative of PHP debugging tools, which can display the structure information of any PHP variable.
The above is the detailed content of What are the PHP debugging tools?. For more information, please follow other related articles on the PHP Chinese website!

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。


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