?? PHP ?? ????? ???
??:
PHP?? echo? print?? ? ?? ?? ?? ??? ????.
? ???? ? ?? ???? ??? ???? ???? echo? print? ???? ??? ?????.
1. PHP? ? ?? ???? ?? ?
echo? print? ???:
echo - ?? ??? ???? ??? ? ????
print - ??? ???? ??? ? ??? ?? ?? ?? 1???
??: echo? print?? ??? ???? echo? ?? ?? ??? print? ?? ?? 1???. ???? ?? echo? ??? ??? ?????.
2. PHP echo ?
echo? ?? ?? ?? ??? ?? ??? ? ?? ?? ?????: echo ?? echo().
?? ???
?? ???? echo ??? ???? ???? ??? ?????. ?? ???(???? HTML ??? ??? ? ??):
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>php.cn</title> </head> <body> <?php echo "<h1>大家都來進(jìn)入PHP的世界吧!</h1>"; echo "Hello world!<br>"; echo "我"," 想"," 學(xué)習(xí) "," PHP!<br>"; ?> </body> </html>
?? ??
?? ???? ?? ??? ?????. echo ??? ??? ???? ?????.
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>php.cn</title> </head> <body> <?php $a="Hello world!"; $b="歡迎來到php"; echo $a; echo "<br/>"; echo $b; ?> </body> </html>
3. PHP ?? ?
print? ?? ??? ???? print ?? print()? ?? ?? ????? ???.
??? ??
?? ???? print ??? ???? ???? ???? ??? ?????(???? HTML ?? ??):
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>php.cn</title> </head> <body> <?php print "<h1>大家都來進(jìn)入PHP的世界吧!</h1>"; print "Hello world!<br>"; ?> </body> </html>
?? ??
?? ???? print ??? ???? ???? ??? ?????. ?? ? ?? ???:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>php.cn</title> </head> <body> <?php $a="Hello world!"; $b="歡迎來到php"; print $a; print "<br/>"; print $b; ?> </body> </html>
?? ??: echo? ?? ??? ???? ??? ? ??? print? ??? ???? ??? ? ??? ?? ?? ?? 1???.
