<?php function &get_instance_ref() { static $obj; echo 'Static object: '; var_dump($obj); if (!isset($obj)) { // Assign a reference to the static variable $obj = &new stdclass; } $obj->property++; return $obj; } function &get_instance_noref() { static $obj; echo 'Static...
var_dump() –It will print the array of data with more information to the browser. For example, it will print data with its length, type information.Note:In PHP, var_export() is capable of both for displaying output to the browser and for storing it to a variable, on a need basis....
phpdumpher DumPHPer is an advanced PHP variable dumper, that shows detailed info in a simple way. Usages \Utils\Dumphper::dump($data); Extended functionality function d() { $args = func_get_args(); foreach ($args as $a) { \Utils\Dumphper::dump($a); } exit(); } Installation...
PHP Variables <?php $var=5; echo var_dump($var); // Output int(5) echo ""; $var='5'; echo var_dump($var); // Output string(1) "5" echo ""; $var=5.8; echo var_dump($var); // output float(5.8) echo ""; $var=+5; echo var_dump($var); // Output int(5) echo...
If the variable does not exist, then it will show “Variable does not exist” message on the web page. In our example it will show the variable value on our web page as the variable we already have defined. Using the var_dump we can see the boolean result returned by the PHP isset(...
PHP - Comments PHP - Variables PHP - Echo/Print PHP - var_dump PHP - $ and $$ Variables PHP - Constants PHP - Magic Constants PHP - Data Types PHP - Type Casting PHP - Type Juggling PHP - Strings PHP - Boolean PHP - Integers PHP - Files & I/O PHP - Maths Functions PHP - Her...
PHP Variable Handling FunctionsThe PHP variable handling functions are part of the PHP core. No installation is required to use these functions.FunctionDescription boolval() Returns the boolean value of a variable debug_zval_dump() Dumps a string representation of an internal zend value to output ...
PHP - Comments PHP - Variables PHP - Echo/Print PHP - var_dump PHP - $ and $$ Variables PHP - Constants PHP - Magic Constants PHP - Data Types PHP - Type Casting PHP - Type Juggling PHP - Strings PHP - Boolean PHP - Integers PHP - Files & I/O PHP - Maths Functions PHP - Her...
Names in key, variables in value. 返回值 Returns TRUE if something has effectively been added into the cache, FALSE otherwise. Second syntax returns array with error keys. 范例 Example #1 A apcu_add() example <?php$bar = 'BAR';apcu_add('foo', $bar);var_dump(apcu_fetch('foo'));ech...
class filter{ /* * @var: $types (array): holds all the supported datatypes, their number, and the callback that need to be made * to check if it's valid. */ private $types = array('string'=> array('number'=> '1', 'callback'=> 'is_string'), 'int'=...