: PHP
1.
2.
3. int
4. PHP
5. PHP
6.
7.
8. ֳ
9.
10.
http://dmko.ru/web-server/ustanovka-i-nastroyka-wamp-servera
PHP - . PHP -. - html .
<html>
<head>
<title> </title>
</head>
<body>
<?php
echo Hello world;
?>
</body>
</html>
4. PHP :
<?php?>:
<?php echo Hello, world\n;?>
<??>:
<? echo Hello, world\n;?>
short_open_tag php.ini On.
<% %>:
<% echo Hello, world\n; %>
php.ini.
asp_tags = Off
asp_tags = On
1. PHP 6 ;
<script language= PHP> i </script>.
PHP- JavaScript-. language PHP:
<script language = PHP> echo Hello, world\n; </script>
5. PHP
//
#
/*
*/
6.
:
echo
echo Hello, world;
, :
Echo 1, 2;
print Hello, world;
3. .
:
<?php
echo 1<br>
2<br>
3<br>;
?>
2.
, , :
<?php
echo<<<̲
1<br>
2<br>
3<br>
̲;
?>
7.
(Boolean).
<?php
$ x = True;// $ x TRUE
$ x
?>
8.ֳ
Integer ()
<?php
$int_num=5;
echo $int_num;
?>
9.
<?php
$double_num_1=5.4;
$double_num_2=5.4e3;
$double_num_3=5e-5;
echo$double_num_1. <br>;
echo$double_num_2. <br>;
echo$double_num_3. <br>;
?>
10.
String ()
<?php
$stroka=Hello world;
echo $stroka. <br>
?>
09.09.16
3
: PHP
|
|
|
1. PHP
2. PHP
3. PHP
4. PHP
5.
1. $.
-
gettype().
<?php
$int_num = 5;
Echo $int_num;
Echo gettype($int_num);
?>
-
:
Is_int(<>) true, integer ( );
Is_integer (<>) true, integer ( );
Is_double (<>) true, double ( );
Is_float (<>) true, double ( );
Is_string (<>) true, string ();
Is_array (<>) true, array ();
Is_object (<>) true, double ( );
Is_double (<>) true, double ( );
-
isset (<>) .
-
empty (<>) , .
-
php . : settype()
-
php , .
<?php
$name = id;
$id =5;
Echo $name;
?>
PHP
- , , .
.
, = $a=100, $a 100.
$A =100;
$a ,
=- ,
100 . 100. , :
$X = 7;
$Y = $X;
, :
<?php
Function funct ()
{
Return 5;
}
?>
- , , . funct () 5, funct () 5.
ֳ >, < == (), | | ( ), && ( I),! ( ) .
:
$A = 10 <5;
$A=$b==1;
$A=$b>=1 && $b<=10;
$A =!($B | | $c) && $d;
:
$A = ;
