If there is such a number, I do not know if it is possible, but if the function is returned, there will certainly be this big number
$num = 101000000411132513120104;
Direct echo
echo $num;//或者echo (string)$sum;
have been
1.0100000041113E+2
1. php-Excel
Php-Excel is a very simple library for generating Excel documents from PhP on-the-fly.
Http://code.google.com/p/php-excel/Download scriptsHttp://www.jb51.net/codes/24319.html2. phpexcel
Project providing a set of classes for the PHP
User-defined function implementation pyramid The code is as follows:Copy code /*** Pyramid* String fun_py (int $ rows = 9, bool $ sort = true)* $ Rows indicates that the number of rows must be an integer and must be between 1 and 20* $ Sort
1. IntroductionWhen PHP scripts have output, the output control function can use these to control the output. This is useful in many different situations, especially when the script starts to output data, it sends the http header information to the
PHP connection MySQL I have already written the article, this article is mainly about the query from the MySQL results after the output of the problem.
One: Mysqli_fetch_row ();
Query Result: Array ([0]=> Xiao Wang)
Inquire:
while ($row =
such as the custom of the test table field. It's not fixed.
Sid name Age
1 Test 10
2 Majia 123
............
1
Test
2
Majia
Reply to discussion (solution)
Of course, there are other methods that can be searched online. I recommend a way to browse both the HTTP page and the WAP page, which is to use the Firefox + wmlbrowser component. Install the Wmlbrowser component of Firefox can support the direct
In PHP programming, the double quotation mark "and the single quotation mark" is the string and the character expression form, then we want to output it how to do, below we see a simple output single double quotation mark instance bar.
Home we look
The output control function does not affect the header information sent using header () or Setcookie (), only data blocks that resemble Echo () and PHP code are useful.
Let's start with a simple example that gives you a general impression of the
Maybe you will ask, since ob_flush () sends the buffered data, why do we still need to use flush ()??? Can't I use the following code directly ?? Buffer output
For ($ I = 10; $ I> 0; $ I --)
{
Echo $ I;
Flush ();
Sleep (1 );
}
?> According to the
$t =imagecreatetruecolor (100,100);
$red =imagecolorallocate ($t, 255,0,0);
Imagefill ($t, 0,0, $red);
Header (' content-type:image/png ');
Imagepng ($t);
Imagedestroy ($t);
?>
People say with such a piece of code can output a picture, but I use
HTML code inside the database (escaped):
50 years ago, General de Gaulle, with excellent strategic vision and extraordinary political courage, promoted the handshake of the two great countries of China and France, and set up a model for the
I. echoecho () is actually not a function, but a php statement, so you do not need to use parentheses for it. However, if you want to pass more than one parameter to echo (), a parsing error occurs when brackets are used. Besides, echo returns void
Problem: PHP enters the user list as a csv file. opening in excel shows garbled characters. opening in Notepad or ue is normal. display the file encoding as UTF-8. Solution: functiondown_file ($ filepath, $ filename) {if (! File_exists ($ filepath) {
Print,print_r,printf,sprintf,die,echo,var_dump, Var_export Difference
1 Echo ()
You can output multiple strings at the same time, multiple parameters, no parentheses, no return values.
2 print ()
You can only output one string at a time, one
Problem: the PHP input user list is a csv file, which is displayed as garbled characters when opened in excel, and opened normally with notepad or ue. Check that the file encoding is UTF-8.
Solution:Function down_file ($ filepath, $ filename){If (!
Basic Principle of ob: If the ob cache is enabled, the echo data is first stored in the ob cache. For header information, it is directly stored in the program cache. After the page is executed, the ob cached data is put into the program cache and
Output statementecho????Example:Print ();Example:Only scalar data types can be output, Boolean false cannot be outputPrint_r ();???? Print_r can display data in a more easily understandable wayExample:Var_dump ();???? Used for detailed information
JS Code:
Start_btn.click (function () {
$.getjson ("data.php", function (JSON) {
if (JSON) {
var len = json.length;
_gogo = setinterval (function () {
var num = Math.floor (math.random () *len);
var id = json[num].id;
var v = json[num].mobile;
$
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