php best debugging functions
<?php
$myVar = "hello world!";
var_dump($myVar);
print_r($myVar);
$allVars = get_defined_vars();
print_r($allVars);
debug_zval_dump($allVars);
function sayHello($hello) {
echo $hello;
debug_print_backtrace();
}
sayHello($myVar);
?>php best debugging functions
A good example of data output to the console via <script> tags, I myself used this first, but he broke the captcha job, because <script> tags were inserted into the base64 code of the captcha picture. Then I began to display logs in the headers with such a function (it may help someone else, in a similar situation):
<?php
function header_log($data){
$bt = debug_backtrace();
$caller = array_shift($bt);
$line = $caller['line'];
$file = array_pop(explode('/', $caller['file']));
header('log_'.$file.'_'.$caller['line'].': '.json_encode($data));
}
?>
Usage:
$myvar = array(1,2,3);
header_log( $myvar ); // in headers we see: log_filename_rownumber: [1,2,3]Copyright © 2021 Codeinu
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