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php 打印、显示、输出函数收集

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Jun 13, 2016 am 10:36 AM

echophpthisworld函數列印收集顯示輸出

<?php echo "Hello World"; echo "This spans multiple lines. The newlines will be output as well"; echo "This spans multiple lines. The newlines will be output as well."; echo "Escaping characters is done "Like this"."; // You can use variables inside of an echo statement $foo = "foobar"; $bar = "barbaz"; echo "foo is $foo"; // foo is foobar // You can also use arrays $baz = array("value" => "foo"); echo "this is {$baz[value]} !"; // this is foo ! // Using single quotes will print the variable name, not the value echo foo is $foo; // foo is $foo // If you are not using any other characters, you can just echo variables echo $foo; // foobar echo $foo,$bar; // foobarbarbaz // Some people prefer passing multiple parameters to echo over concatenation. echo This , string , was , made , with multiple parameters., chr(10); echo This . string . was . made . with concatenation. . " "; echo This uses the "here document" syntax to output multiple lines with $variable interpolation. Note that the here document terminator must appear on a line with just a semicolon. no extra whitespace! END; // Because echo does not behave like a function, the following code is invalid. ($some_var) ? echo true : echo false; // However, the following examples will work: ($some_var) ? print true : print false; // print is also a construct, but // it behaves like a function, so // it may be used in this context. echo $some_var ? true: false; // changing the statement around ?>

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PHP die() 函数

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