In fact, I have always had a doubt in my mind. Is the higher the PHP version, the more stable it is? The higher the better? In general, the newer the version, the better. Take wordpress as an example. In the PHP7.0 environment, the speed is about 3 times faster than the previous version.
Currently the highest version of PHP is 7.x, but we generally use php5.3.x, and even quite a few use PHP5 .2.X version. (Recommended learning: PHP video tutorial)
From the perspective of website development, the higher the PHP version, the better. After all, the new version has improved in all aspects, such as PHP7.0. The human function calculation test is more than 3 times faster than 5.
The main reason is that many programs do not support the new PHP version, especially some programs that have not been updated for a long time. They only support the PHP5.2.X series version. In the end Which version to choose depends on what program you use and the corresponding template, rather than blindly pursuing an exorbitant version.
If you want to be compatible with more programs, it is recommended to use PHP5.3.X version. If you want to pursue higher performance, PHP5.6.X or even PHP7.0 series is recommended.
The current wordpress program supports php7.0 very perfectly. However, some templates that have not been updated have many problems under 7.0.
Therefore, it is recommended that partners who use WordPress programs pay special attention to whether the templates and plug-ins they use are compatible when choosing the PHP7.0 version. If it is a commercial template, it is recommended to consult the author and do not blindly upgrade and replace it.
For example, I am using the AMH5.2 commercial version, in which the PHP version can be downloaded and combined by itself. Due to factors such as templates, PHP5.6.19 is used.
So I would like to remind you not to blindly pursue a version that is too high. Configure and choose according to the best PHP environment for your program. The newer the version, there are more bugs at the beginning. In terms of stability, It may also be discounted, as the old version has been tested for a long time after all!
The above is the detailed content of Is the higher the php version, the better?. For more information, please follow other related articles on the PHP Chinese website!

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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。

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。

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。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。

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。


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