max () returns the maximum value. Syntax max (x, y) Parameter Description x Required. A few. y necessary. A few. Description max () Returns the value with the highest value in the argument. If there is only one parameter and an array, max () returns the largest value in the array. If the first argument is an integer, string, or floating point number, at least two arguments are required and max () returns the largest of these values. You can compare an unlimited number of values. echo max (1,3,5,6,7); & ...
php tutorial multi-file upload code to achieve multi-file upload php This article uses the php multi-file upload class to achieve, and examples of multiple instances of php upload files Oh, multi-file upload is the most important attribute on the file must be in the form of an array Use foreach or for also read one by one Move_uploaded_file file upload to the server This multi-file upload Oh. * /?> <! doctype html public "- // w3c ...
First, get to know the random number function rand () provided by the PHP tutorial. The rand () function of PHP returns a random integer using the following rand (Min,max) optional argument min and Max can cause rand () to return a pseudo random integer between 0 and Rand_max. For example, want a random number between 5 and 15 (including 5 and 15), with Rand (5, 15). Let me take a look at a specific example, we do a basic function call, do not set the specific parameters, we get the random number ...
Use PHP to develop applications, especially web applications, often need to generate a random password, such as user registration to generate a random password, the user also need to reset the password to generate a random password. Random password is a string of fixed-length string, where I collected several ways to generate a random string for your reference. Method 1: 1, in 33 - 126 to generate a random integer, such as 35, 2, 35 will be converted to the corresponding ASCII characters, such as 35 corresponding to # 3, repeat the above 1, 2 steps n times, connected ...
PHP Tutorial $ _post function and $_get function in detail 1, get is to obtain data from the server, post is to send data to the server, 2, gets the form of data in the form of variable=value, add to the action point of the URL after the And both use "?" Connection, and the "&" connection is used between the variables. Post is to put the data in the form in the form's data body, according to the variable and the value of the corresponding side ...
<?php//Save the image of the newspaper as head upload. Define (' Sd_root ', DirName (__file__). /'); @header ("expires:0"); @header ("Cache-control:private, Post-check=0, pre-check=0, max-age=0", FALSE); @header.
The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall one: first know to do the station, I was also a personal webmaster first contact to do the site is in 07, when I was a sophomore, because that period of time cinnic is vigorously promote the CN domain name a only a dollar, so I did is to apply for a lot of CN domain name and then look around Free space. In the meantime land continued to do a lot of websites, at that time to SEO and other some do station skills do not understand, just with intuition oneself in the website update a message and then go to Baidu posted post and then Non-stop ...
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