PHP中的<<<运算符，php中运算符_PHP教程

PHP中的

PHP中提供了 这种方法详细表述了字符串的字面值，并在文本中保留了字符串的下划线和其他空格（包括缩进）。例如：

1. <span>1</span> <?<span>php
   </span><span>2</span> <span>$author</span> ='wixy'<span>;
   </span><span>3</span> <span>echo</span> <<<<span>_END
   </span><span>4</span> <span>Thisis a Headline
   </span><span>5</span> Thisis the first line.
   <span>6</span> Thisis the second line.
   <span>7</span> ---Writtenby <span>$author</span>.
   <span>8</span> <span>_END;
   </span><span>9</span> ?>

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1. <span>1</span> <?<span>php
   </span><span>2</span> <span>$out</span> =<<<<span>_END
   </span><span>3</span> .....
   <span>4</span> <span>_END;
   </span><span>5</span> ?>

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