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$str = 'An apple a day keeps the docter away.'
µ±×Ö·û´®³öÏÖ ' ·ûºÅʱ£¬±ØÐë¼ÓÉÏ£º
'I'm wing'
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'I'm wing'
²Å¶Ô£¬ÆäÖÐ ' ¼´³ÆÎªÌøÍÑ×Ö·û (escape character)¡£
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ÒÔË«ÒýºÅΧסµÄ×Ö·û´® PHP »á¶Ô¸Ã×Ö·û´®×ö variable interpolation µÄ¶¯×÷£¬Ò༴×ö±äÁ¿µÄÈ¡´ú£º
$name = "Wing";
echo 'Name: $name';
echo "Name: $name";
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Name: $name
Name: Wing
ÔÚË«ÒýºÅÀïµÄ×Ö·û´®Èç¹ûÓÐ $ (dollar sign)£¬Ö»Òª¸Ä³ÉÌøÍÑ×ÖÔªµÄд·¨¼´¿É£º
$total = 12000
echo "Total: $ $total"; //Êä³ö Total: $ 12000
ÔÚ×ö variable interpolation ʱ£¬±äÁ¿Ãû³ÆÊÇÒÔÒ»¸öÒÔÉϿոñ×öΪ½çÏߣ¬ÀýÈ磺
$n_file = 5;
if ($n_file == 1) {
echo "There are $n_file.";
} else {
echo "There are $n_files.";
}
µ± $n_file ²»Îª 1 ʱ£¬"There are $n_files." PHP Ëù¿´µ½µÄ±äÁ¿Îª $n_files£¬¶ø²»ÊÇÕýÈ·µÄ $n_file£¬ËùÒÔ±ØÐë¸Ä³É£º
$n_file = 5;
if ($n_file == 1) {
echo "There are $n_file.";
} else {
echo "There are {$n_file}s.";
}
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echo "I'm a happy bird.";
echo 'I'm a happy "bird"!';
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I'm a happy bird.
I'm a happy "bird"!
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echo `ls -l *.txt`;
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php variable circular reference

 
Php Variable Circular References

Circular-references has been a long outstanding issue with PHP. They are
caused by the fact that PHP uses a reference counted memory allocation
mechanism for its internal variables. This causes problems for longer
running scripts (such as an Applicatio ......

php ¹¹Ô캯Êý²ÎÊý

ÔÚPHPÀÈç¹ûÄãûÓÐÊÖд¹¹Ô캯Êý£¬ÔòphpÔÚʵÀý»¯Õâ¸ö¶ÔÏóµÄʱºò£¬»á×Ô¶¯ÎªÀà³ÉÔ±ÒÔ¼°Àà·½·¨½øÐгõʼ»¯£¬·ÖÅäÄÚ´æµÈ¹¤×÷£¬µ«ÊÇÓÐЩʱºò²»ÄÜÂú×ãÎÒÃǵÄÒªÇ󣬱ÈÈçÎÒÃÇÒªÔÚ¶ÔÏóʵÀý»¯µÄʱºò´«µÝ²ÎÊý£¬ÄÇô¾ÍÐèÒªÊÖ¶¯±àд¹¹Ô캯ÊýÁË£¬ÊÖд¹¹Ô캯ÊýÓÐÁ½ÖÖд·¨£¬Ö»ÊDZíÏÖÐÎʽ²»Í¬£¬Æäʵ±¾ÖÊÒ»Ñù
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jquery php ajax json

just get a json
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<mce:script src="jquery-1.3.2.min.js" mce_src="jq ......

PHP³õѧÕßѧϰʵÀý

.$dbhost = 'localhost';  
$dbuser = 'root'; //ÄãµÄmysqlÓû§Ãû  
$dbpass = '123456'; //ÄãµÄmysqlÃÜÂë  
$dbname = 'data'; //ÄãµÄmysql¿âÃû  
//Á¬½Ó±¾µØÊý¾Ý¿â
$GLOBALS["conn"] = mysql_connect($dbhost,$dbuser,$dbpass);  
//´ò¿ªÊý¾Ý¿â
mysql_select ......
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