foreach

问题 I've been struggling with the workings of foreach loops in R. To speed up my code I'm trying to change my for loop into a foreach loop with %dopar%. My goal is to end up with three lists of the same length, each filled with data frames that represent scores between two users (I'm comparing three different calculation methods). My code used to be (very basic representation): for (a in 1:5) { #Just creating some sample data resultA <- data.frame(matrix(nrow = 40, ncol = 3)) resultB <- data

问题 I currently am using PHPMailer which gets the list of email addresses from an uploaded .txt file. The current system works fine, but I am trying to add a tracking system to see if the email is viewed. We are doing this by adding an image to each email which when viewed updates via php to let us know the email has been viewed. Currently our PHPMail looks something like this, foreach ($email_addresses as $line_num => $line) { $ismatch = preg_match('/^[\s,]+$/',$line); $isvalid = preg_match('/^[

问题 I currently am using PHPMailer which gets the list of email addresses from an uploaded .txt file. The current system works fine, but I am trying to add a tracking system to see if the email is viewed. We are doing this by adding an image to each email which when viewed updates via php to let us know the email has been viewed. Currently our PHPMail looks something like this, foreach ($email_addresses as $line_num => $line) { $ismatch = preg_match('/^[\s,]+$/',$line); $isvalid = preg_match('/^[

问题 I have tried a lot of variants of code and tried to find similar problem in other topics. So, i have table users where each user is having one city(stored as a number), and of course table city with id and name of city (40 cities is there). When real user open his profile settings page I want his city to be selected and and displayed in form. In this example in user table "Alex" is having city"2". In table city: id "2" and name_ru "cityB". If i try this: @foreach(App\City::get() as $city)

问题 I'm quite new to PS, so please don't kill me if the resolution is so easy :) I've tried to find a solution here and in google, but no luck. This is part of code which don't work as I want $Contents = Get-Content "Path\test.txt" foreach($Line in $Contents) { $Line = $Line.split(":")[1] $s = $line -split ':' $RegPath = $s[0] $Value_Name = $s[1] $Type = $s[2] $Value = $s[3] Write-host $RegPath $Value_Name $Type $Value } The output from Write-Host is ok, but the main problem is when I want to use

问题 I'm quite new to PS, so please don't kill me if the resolution is so easy :) I've tried to find a solution here and in google, but no luck. This is part of code which don't work as I want $Contents = Get-Content "Path\test.txt" foreach($Line in $Contents) { $Line = $Line.split(":")[1] $s = $line -split ':' $RegPath = $s[0] $Value_Name = $s[1] $Type = $s[2] $Value = $s[3] Write-host $RegPath $Value_Name $Type $Value } The output from Write-Host is ok, but the main problem is when I want to use

问题 I have setup fields and sub-fields using Advanced Custom Fields (ACF). The structure is similar to: Field: Pet Details - Sub-Field: Pet Name (text) - Sub-Field: Pet Birthday (date picker) - Sub-Field: Pet Gender (taxonomy, select) - Additional... I have been able to use these within my custom post type (/cpt_slug/post_title) using the get_field() , get_sub_field() functions, however I have not been able to usilise the default ACF functions ( get_field() , get_sub_field() , etc ) in

问题 how to get specific data by key name from the following foreach code. <?php foreach ($_SESSION as $key=>$val) echo $key." ".$val."<br/>"; ?> array is look like this want to get value of specific key. {"name":"bedroom","rent":"sale","props":"","leases":""} i have tried following code but doesn't work echo "checking key sep. ".$key[rent]; if possible i can access by key name like name or rent. 回答1: The format is in JSON , you need to decode it first by using json_decode() Something like this...

问题 how to get specific data by key name from the following foreach code. <?php foreach ($_SESSION as $key=>$val) echo $key." ".$val."<br/>"; ?> array is look like this want to get value of specific key. {"name":"bedroom","rent":"sale","props":"","leases":""} i have tried following code but doesn't work echo "checking key sep. ".$key[rent]; if possible i can access by key name like name or rent. 回答1: The format is in JSON , you need to decode it first by using json_decode() Something like this...

问题 I want to the the number of records in all tables that match a specific name criteria. Here is the SQL I built Declare SQLStatement VARCHAR (8000) :=''; BEGIN SELECT 'SELECT COUNT (*) FROM ' || Table_Name || ';' INTO SQLStatement FROM All_Tables WHERE 1=1 AND UPPER (Table_Name) LIKE UPPER ('MSRS%'); IF SQLStatement <> '' THEN EXECUTE IMMEDIATE SQLStatement; END IF; END; / But I get the following error: Error at line 1 ORA-01422: exact fetch returns more than requested number of rows ORA-06512