php双引号里面的解析

echo"This works: {$arr['foo'][3]}";
echo"This works too: {$obj->values[3]->name}";
echo"This is the value of the var named $name: {${$name}}";
echo"value of the var named by the return value of getName(): {${getName()}}";
echo"value of the var named by the return value of \$object->getName(): {${$object->getName()}}";

解析数组

$juices = array("apple", "orange", "koolaid1" => "purple");
echo"He drank some $juices[0] juice.".PHP_EOL;
echo"He drank some $juices[koolaid1] juice.".PHP_EOL;
// 有效，只有通过花括号语法才能正确解析带引号的键名
echo"This works: {$arr['key']}";
// 有效
echo"This works: {$arr[4][3]}";

解析变量

echo"This is {$great}";
echo"This is ${great}";

输出字符串

$a = 'aaaa';
$c['c'] = "ccc";
$b = "i am '$a' and  '$c[c]' \" 我是双引号！\"";
echo$b; //i am 'aaaa' and 'ccc'" 我是双引号！"

{}的解析

classbeers {const softdrink = 'rootbeer';
    publicstatic$ale = 'ipa';
}
$rootbeer = 'A & W';
$ipa = 'Alexander Keith\'s';
// 有效，

解析对象

// 有效
echo "This square is {$square->width}00 centimeters broad.";

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以上就介绍了php 双引号里面的解析，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。