unset

问题 What I am writing is a temporarely banning script for people who like to pester my site with small botnets. The only problem I am having is how to unset a json object. I have the following code /* JSON blocking script written by Michael Dibbets * Copyright 2012 by Michael Dibbets * http://www.facebook.com/michael.dibbets - mdibbets[at]outlook.com * Licenced under the MIT license http://opensource.org/licenses/MIT */ // Turn on error reporting ini_set("display_errors", 1); error_reporting(E

问题 What I am writing is a temporarely banning script for people who like to pester my site with small botnets. The only problem I am having is how to unset a json object. I have the following code /* JSON blocking script written by Michael Dibbets * Copyright 2012 by Michael Dibbets * http://www.facebook.com/michael.dibbets - mdibbets[at]outlook.com * Licenced under the MIT license http://opensource.org/licenses/MIT */ // Turn on error reporting ini_set("display_errors", 1); error_reporting(E

问题 I have an array of dates formatted in 'm/d/Y' (month/day/year): $array = array( '1/10/2014', '1/11/2014', '1/12/2014', '1/13/2014', '1/14/2014' ); and I'd like to output the array with only dates of today or in the future. So if today is 1/12/2014 it would eliminate the 1/10/2014 and 1/11/2014. Here is what I have that isn't working: foreach ($array as $date) { $unixdate = strtotime($date); if ($unixdate < time()) { unset($array[$date]); } } print_r($array); I guess I'm not using unset

问题 I have an array of dates formatted in 'm/d/Y' (month/day/year): $array = array( '1/10/2014', '1/11/2014', '1/12/2014', '1/13/2014', '1/14/2014' ); and I'd like to output the array with only dates of today or in the future. So if today is 1/12/2014 it would eliminate the 1/10/2014 and 1/11/2014. Here is what I have that isn't working: foreach ($array as $date) { $unixdate = strtotime($date); if ($unixdate < time()) { unset($array[$date]); } } print_r($array); I guess I'm not using unset

问题 So there is a problem with this, but i'm blind to it. Even after reading the documentation twice (PHP Comparison Operators) isset($items['blog']) ? unset($items['blog']) : NULL; Parse error: syntax error, unexpected T_UNSET 回答1: A @Bryan points out, no function calls to language constructs within the ternary operator. Since there's no return value involved at all here though, just do: unset($items['blog']); There's no need to check if the value is set or not beforehand. If it is not, unset

问题 I have a dictionary lang = {'ar':'arabic', 'ur':'urdu','en':'english'} What I want to do is to delete all the keys except one key. Suppose I want to save only en here. How can I do it ? (pythonic solution) What I have tried : In [18]: for k in lang: ....: if k != 'en': ....: del lang_name[k] .... Which gave me the run time error: RuntimeError: dictionary changed size during iteration 回答1: This is quite fast: En_Value = lang['en'] lang.clear() lang['en'] = En_Value 回答2: Why don't you just

问题 I have a dictionary lang = {'ar':'arabic', 'ur':'urdu','en':'english'} What I want to do is to delete all the keys except one key. Suppose I want to save only en here. How can I do it ? (pythonic solution) What I have tried : In [18]: for k in lang: ....: if k != 'en': ....: del lang_name[k] .... Which gave me the run time error: RuntimeError: dictionary changed size during iteration 回答1: This is quite fast: En_Value = lang['en'] lang.clear() lang['en'] = En_Value 回答2: Why don't you just

问题 I have a dictionary lang = {'ar':'arabic', 'ur':'urdu','en':'english'} What I want to do is to delete all the keys except one key. Suppose I want to save only en here. How can I do it ? (pythonic solution) What I have tried : In [18]: for k in lang: ....: if k != 'en': ....: del lang_name[k] .... Which gave me the run time error: RuntimeError: dictionary changed size during iteration 回答1: This is quite fast: En_Value = lang['en'] lang.clear() lang['en'] = En_Value 回答2: Why don't you just

问题 So basically I made this situation, the parent has the css all: unset . Then I notice when I use Safari(Version 12.1.1 (14607.2.6.1.1) ) all the children of it color only can be effected by * block, not even inline or !important . But only color behaves that way, as you can see the background-color is using it's own property. But it works fine in Chrome, is it a glitch in safari or I did something wrong? And how can I fix it in Safari? * { color: red; /* Text color is using this one */

问题 I have a piece of multidimensional array output like this: Array ( [0] => Array ( [item] => null [count] => 0 [child] => Array ( [Dagadu Bocah] => Array ( [item] => Dagadu Bocah [count] => 47 [child] => Array ( [HirukPikuk] => Array ( [item] => HirukPikuk [count] => 5 [child] => Array ( [DGD] => Array ( [item] => DGD [count] => 1 [child] => ) ) ) In my expectations, I can use the unset function in the foreach loop to delete each array that has 3 keys, namely 'item', 'count' and 'child' so