php print variable
(PHP 4 >= 4.0.4, PHP 5, PHP 7). get_defined_vars — Returns an array of all defined variables ... print all the available keys for the arrays of variables ,Variables in echo and print statements You can display the value in a variable on a web page with an echo or print statement. For instance, if you set the $age variable to 12 and then use the following PHP echo statement in a PHP section, the output is 12,With PHP, there are two basic ways to get output: echo and print . ... The following example shows how to output text and variables with the echo statement: ... ,Example. Write the value of the string variable ($str) to the output, including HTML tags: <?php $str = "Hello world!"; echo $str; echo "<br>What a nice day!"; ?>. ,Prior to PHP 5.4.0, this short syntax only works with the short_open_tag configuration setting ... Using single quotes will print the variable name, not the value ,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 ... ,Recrusive print variables and limit by level. * * @param mixed $data The variable you want to dump. * @param int $level The level number to limit recrusive loop ... ,print_r() - Prints human-readable information about a variable ... so you get nice formatted arrays. <?php function var_dump_pre($mixed = null) echo '<pre>';
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 php print variable 相關參考資料
get_defined_vars - Manual - PHP
(PHP 4 >= 4.0.4, PHP 5, PHP 7). get_defined_vars — Returns an array of all defined variables ... print all the available keys for the arrays of variables https://www.php.net How to Display PHP Variable Values - dummies
Variables in echo and print statements You can display the value in a variable on a web page with an echo or print statement. For instance, if you set the $age variable to 12 and then use the followin... https://www.dummies.com PHP Echo and Print Statements - W3Schools
With PHP, there are two basic ways to get output: echo and print . ... The following example shows how to output text and variables with the echo statement: ... https://www.w3schools.com PHP echo() Function - W3Schools
Example. Write the value of the string variable ($str) to the output, including HTML tags: <?php $str = "Hello world!"; echo $str; echo "<br>What a nice day!"; ?>. https://www.w3schools.com PHP: echo - Manual - PHP.net
Prior to PHP 5.4.0, this short syntax only works with the short_open_tag configuration setting ... Using single quotes will print the variable name, not the value http://php.net PHP: print - Manual - PHP.net
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 ... https://www.php.net print_r - Manual - PHP
Recrusive print variables and limit by level. * * @param mixed $data The variable you want to dump. * @param int $level The level number to limit recrusive loop ... https://www.php.net var_dump - Manual - PHP
print_r() - Prints human-readable information about a variable ... so you get nice formatted arrays. <?php function var_dump_pre($mixed = null) echo '<pre>'; https://www.php.net |