php check int

PHP features: the command line mode starts with version 4.3.0. PHP provides a new type of cli sapi (Server Application Programming Interface, Server Application Programming Port) support, named CLI, command Line Interface, that is, Command Line

Source: www. oschina. netquestion57579_501_www.oschina.netquestion1579_000062. I think about it in the middle of the night. I thought about it before, after, when I decided to delete my blog account yesterday afternoon. Open the computer, open OSC,

Starting with version 4.3.0, PHP provides a new type of CLI SAPI (Server application Programming Interface, service-side application programming port) support, called CLI, which means Command line Interface , which is the command-line interface. As

On several offline servers that are not very busy, the number of PHP-FPM processes is found to be more than 500, and some processes run for several months. The following troubleshooting was performed to determine if there is a problem with the

PHP-fpm has been finalized since php 5.4 RC2 and is no longer labeled as EXPERIMENTAL (EXPERIMENTAL stuff) [2-3] By the php team.Compared with Spawn-FCGI, PHP-FPM has better control over CPU and memory, and the former is easy to crash and must be

In PHP, int is an integer. An integer is a set of Z = {...,-2,-1, 0,A number in 1, 2.   The integer value can be expressed in decimal, hexadecimal, or octal notation. An optional Symbol (-or +) can be added before ). The octal value indicates that

I connected using pdo and printed it using var_dump. I found that the field of the int type in mysql is printed and changed to the string type. I don't know what the problem is, is there a way for php to display the actual mysql field type? I

If the result is positive, the int and 11 values in int (11) must match the int (11) and int values. that is to say, if no parentheses are followed, only int values are matched. PHPcode $ str = & lt; & lt; please match int (11) and intDOC;

Copy Code code as follows: echo " numeric cast:"; $string = "2a"; $string 1=intval ($string); Echo ' $string value of 1: '. $string 1. ' Value of $string 2: ';//single quotation mark does not output variable, output as-is $string 2=

PHP saves data to MySQL It is intended to clean up the data before it is put into the DAO layer, such as varchar for trim,int intval. One day it suddenly occurred to me that PHP intval the same value range as the MySQL int type? Check it out, not