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ÎҵĵÚÒ»¸öPHP£ºHello World
<?php
echo"Hello World!";
?>
ÏÔʾ½á¹ûΪ Hello World!
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PHPÖУ¬ËùÓеıäÁ¿¶¼ÒÔ±êʶ“$”¿ªÍ·:
<?php
$str1 = "Hello World!";
echo $str1;
?>
ÏÔʾ½á¹ûΪ Hello World!
PHPÖÐʹÓÓ.”·ûºÅÁ¬½Ó²»Í¬µÄ×Ö·û´®¡£¾ÙÀýÈçÏ£º
<?php
$Str1 = "Hello, ";
$Str2 = 5;
$Str3 = " OH.C!";
$Str2++;
echo "$Str1"."$Str2"."$Str3"."<br/>";
//Ò²¿ÉÒÔ
echo "$Str1 $Str2 $Str3 <br/>";
?>
ÏÔʾ½á¹ûΪ
Hello, 6 OH.C!
Hello, 6 OH.C!
Èç¹ûûÓÐÒýºÅ£¬Ð´³ÉÒÔÏÂÐÎʽ
<?php
$Str1 = "Hello, ";
$Str2 = 5;
$Str3 = " OH.C!";
$Str2++;
echo $Str1.$Str2.$Str3."<br/>"; //ÕýÈ·
echo $Str1 $Str2 $Str3 "<br/>"; //´íÎó
?>
PHP¶Ô¸÷ÖÖÔËËã·û¼°ÔËËã¹æÔò¶¼ÓÐÒ»Ì×ÍêÕûµÄ¹æ¶¨£¬Èç¹ûÓû§¾ßÓÐC»òC++ÓïÑԵıà³Ì±³¾°µÄ»°£¬¿ÉÒÔ·¢ÏÖÒ»Çж¼µÃÐÄÓ¦ÊÖ¡£
ÓëPerlÓïÑÔÒ»Ñù£¬ÔÚPHPÖУ¬Èç¹ûÔÚË«ÒýºÅ°üº¬µÄ×Ö·û´®Öк¬ÓбäÁ¿µÄ»°£¬¸Ã±äÁ¿½«ÓÃÏàÓ¦µÄ±äÁ¿ÖµÌæ»»£»Èç¹û×Ö·û´®±»µ¥ÒýºÅ°üº¬£¬Ôò²»×öÌæ»»¡£ÀýÈ磺
<?php
$MyName = "OH.C";
$Str1 = "Hello, $MyName";
$Str2 = 'Hello, $MyName';
echo "Str1: $Str1"."<br>";
echo "Str2: $Str2 <br>";
echo "--------------------<br>";
echo 'Str1: $Str1'.'<br>';
echo 'Str2: $Str2 <br>';
?>
ÏÔʾ½á¹ûΪ
Str1: Hello, OH.C
Str2: Hello, $MyName
--------------------
Str1: $Str1
Str2: $Str2
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<?php
$ArrStr1[0] = 'Hello!';
$ArrStr1[1] = 'How are you?';
echo $ArrStr1[0]."<br/>";
echo $ArrStr1[1]."<br/>";
echo"----------------------<br/>";
$ArrStr2['animal'] = 'tiger';
$ArrStr2['company'] = 'IBM';
echo $ArrStr2['animal']."<br/>";
echo $ArrStr2['company']."<br/>";
?>
ÏÔʾ½á¹ûΪ
Hello!
How are you?
----------------------
tiger
IBM
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<?php
$ArrStr1[0] = 'Hello!';
$ArrStr1[1] = 'How are yo


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