unset

问题 I'm using some $_SESSION variables for filtering many query records that have a similar name (ex. $_SESSION['nameFilter'] or $_SESSION['cityFilter'] and so on). I'm using a link for resetting these filters, but I want to know if there is a way to unset all $_SESSION variables that have a name that is like: $_SESSION[(somewords)Filter] 回答1: Use foreach to enumerate the keys of $_SESSION[] , use substr() to get the last 6 characters of each key, use unset() to (what else?) unset it. As easy as:

问题 I have a website with an email form response. I need to send 2 emails when clicked and is working with slim framework, msgHTML and twig. I set twig template by a condition to show one part of that template for the first email and other part for the another. Don't work because the first email body message was added to the second one. So I created 2 instances of phpmailer to send 2 separate twig templates but the same error appears, it add the 2 templates in the last email body message. Is

问题 I just read about unset variable through php manual. The php manual says "unset() destroys the specified variables" This def seems perfect until I came across static variable... "If a static variable is unset() inside of a function, unset() destroys the variable only in the context of the rest of a function. Following calls will restore the previous value of a variable. " This definition doesn't seems a good one for me, at least, since "destroy the variable" implies that the variable is no

问题 I am working with a PHP loop, and I had one question regarding how unset affects the array keys. This array uses the standard numeric keys assigned by PHP, 0, 1, 2, 3 etc... . Whenever unset() runs on an array value, are the array keys shuffled or are they maintained as before? Thank you for your time. 回答1: The keys are not shuffled or renumbered. The unset() key is simply removed and the others remain. $a = array(1,2,3,4,5); unset($a[2]); print_r($a); Array ( [0] => 1 [1] => 2 [3] => 4 [4] =

问题 I am working with a PHP loop, and I had one question regarding how unset affects the array keys. This array uses the standard numeric keys assigned by PHP, 0, 1, 2, 3 etc... . Whenever unset() runs on an array value, are the array keys shuffled or are they maintained as before? Thank you for your time. 回答1: The keys are not shuffled or renumbered. The unset() key is simply removed and the others remain. $a = array(1,2,3,4,5); unset($a[2]); print_r($a); Array ( [0] => 1 [1] => 2 [3] => 4 [4] =

问题 I am working with a PHP loop, and I had one question regarding how unset affects the array keys. This array uses the standard numeric keys assigned by PHP, 0, 1, 2, 3 etc... . Whenever unset() runs on an array value, are the array keys shuffled or are they maintained as before? Thank you for your time. 回答1: The keys are not shuffled or renumbered. The unset() key is simply removed and the others remain. $a = array(1,2,3,4,5); unset($a[2]); print_r($a); Array ( [0] => 1 [1] => 2 [3] => 4 [4] =

问题 I am working with a PHP loop, and I had one question regarding how unset affects the array keys. This array uses the standard numeric keys assigned by PHP, 0, 1, 2, 3 etc... . Whenever unset() runs on an array value, are the array keys shuffled or are they maintained as before? Thank you for your time. 回答1: The keys are not shuffled or renumbered. The unset() key is simply removed and the others remain. $a = array(1,2,3,4,5); unset($a[2]); print_r($a); Array ( [0] => 1 [1] => 2 [3] => 4 [4] =

问题 I am unable to get the cookie to unset. cookie set: (id, alias) setcookie("id",$data['id'], time()+3600*24*30); setcookie("alias",$this->nombre, time()+3600*24*30); cookies unset? (id, alias) setcookie("id","-1",time()-315360000); setcookie("alias","",time()-315360000); unset($_COOKIE['id']); // additional, but still no.. unset($_COOKIE['alias']); // " " What I am doing wrong? 回答1: Using your example, I created this test: <?php ob_start(); echo '<pre>'; setcookie("id","0001", time()+3600*24

问题 I'm passing an id by ajax to be removed by $_SESSION. The ajax part works fine, the php receive in POST the id, but the vairable can't be unset. Why??? Here my code: The ajax part: $(".delete").live('click', function(e){ e.preventDefault(); var id_to_remove = $(this).attr('id'); //alert(id_to_remove); $.ajax({ type: "POST", url: 'inc/functions/remove_item_from_cart.php', data: { id : id_to_remove }, success: function(data) { $("#content").load('inc/functions/get_checkout_content.php'); alert

问题 I am using session variables to control logins and page access. I use variables to control different user groups that a user belongs to, so I have quite a few session variables. I also use a session variable to remember the users last visited page upon refresh. When the user logs out, I use session_destroy(); to remove all variables. What i would like to do is to maintain the last visited page variable even after the user has logged out. I think I could do it by using the unset function on