print

(PHP 4, PHP 5)

print — Output a string

说明

int print ( string $arg )

Outputs arg .

print() is not actually a real function (it is a language construct) so you are not required to use parentheses with its argument list.

For a short discussion about the differences between print() and echo(), see this FAQTs Knowledge Base Article: » http://www.faqts.com/knowledge_base/view.phtml/aid/1/fid/40

参数

arg: The input data.

返回值

Returns 1, always.

范例

Example#1 print() examples


<?php
print("Hello World");

print "print() also works without parentheses.";

print "This spans
multiple lines. The newlines will be
output as well";

print "This spans\nmultiple lines. The newlines will be\noutput as well.";

print "escaping characters is done \"Like this\".";

// You can use variables inside of a print statement
$foo = "foobar";
$bar = "barbaz";

print "foo is $foo"; // foo is foobar

// You can also use arrays
$bar = array("value" => "foo");

print "this is {$bar['value']} !"; // this is foo !

// Using single quotes will print the variable name, not the value
print 'foo is $foo'; // foo is $foo

// If you are not using any other characters, you can just print variables
print $foo;          // foobar

print <<<END
This uses the "here document" syntax to output
multiple lines with $variable interpolation. Note
that the here document terminator must appear on a
line with just a semicolon no extra whitespace!
END;
?>

注释

Note: 由于这是一个语言结构而非函数，因此它无法被变量函数调用。


	PHP5中文手册 parse_str printf Strings PHP Manual print (PHP 4, PHP 5) print — Output a string 说明 int print ( string `$arg` ) Outputs `arg` . print() is not actually a real function (it is a language construct) so you are not required to use parentheses with its argument list. For a short discussion about the differences between print() and echo(), see this FAQTs Knowledge Base Article: » http://www.faqts.com/knowledge_base/view.phtml/aid/1/fid/40 参数 `arg` The input data. 返回值 Returns 1, always. 范例 Example#1 print() examples <?php print("Hello World"); print "print() also works without parentheses."; print "This spans multiple lines. The newlines will be output as well"; print "This spans\nmultiple lines. The newlines will be\noutput as well."; print "escaping characters is done \"Like this\"."; // You can use variables inside of a print statement $foo = "foobar"; $bar = "barbaz"; print "foo is $foo"; // foo is foobar // You can also use arrays $bar = array("value" => "foo"); print "this is {$bar['value']} !"; // this is foo ! // Using single quotes will print the variable name, not the value print 'foo is $foo'; // foo is $foo // If you are not using any other characters, you can just print variables print $foo; // foobar print <<<END This uses the "here document" syntax to output multiple lines with $variable interpolation. Note that the here document terminator must appear on a line with just a semicolon no extra whitespace! END; ?> 注释 Note: 由于这是一个语言结构而非函数，因此它无法被变量函数调用。参见 echo() printf() flush() parse_str printf Strings PHP Manual

print

说明

参数

返回值

范例

注释

参见