In php, the most used method for array traversal is foreac, while, and for. let's introduce the program code for these three methods. Someone will often ask me, PHP array
In php, the most used method for array traversal is foreac, while, and for. let's introduce the program code for these three methods.
I am often asked if the PHP array is accessed using foreach, is the traversal order fixed? In what order
Problem Description: To satisfy the condition n=a!+b!+c! all three-digit n and output, wherein the A,B,C is N of the Hundred, ten, single digit.1#include"stdafx.h"2 3 intMain ()4 {5 intI, J, N,m, SUM (0), prod (1);6 for(i =1; i +; i++)7 {8n = i;//where it's easy to ignore.9sum =0;//where it's easy to ignore.Ten for(;1;) One { Am = n%Ten; - - for(j =1; J ) the { -Prod *=J; - } - +Sum + =prod; -Prod =1; + A if(N/Ten=
Example of php for loop usage, php instance
The for loop is used to know the number of times the script needs to run in advance.Syntax
For (initial value; condition; increment) {code to be executed ;}
Parameters:
Initial Value: Initializes a variable value to set a counter (but it can be any code that is executed once at the beginning of the
than 2 means that they will execute the loop and will go to for(a=0;a){ for(b=0;b){ for(c=0;c){ for(d=0;d){ for(e=0;e){ for(f=0;f){ //According to the formulas listed above, all are added to the judgment, and the conditions are the final result. if(
The foreach basic syntax is as follows:
FOREACH ($array _variable as $value)
{
[Code to execute]
}
Or
FOREACH ($array _variable as $key = $value)
{
[Code to execute]
}
In both cases, multiple [code execution] will be executed to be equal to the number of elements in the $ array_variable array.
Let's take a look at an example. Let's say we have the following code snippet:
Copy CodeThe code is as follows:
$array 1 = array (1,2,3,4,5);
FOREACH ($array
In php, the most used method for Array traversal is foreac, while, and for. Let's introduce the program code for these three methods.
I am often asked if the PHP array is accessed using foreach, is the traversal order fixed? In what order does it traverse?For example:
The Code is as follows:
Copy code
$ Arr ['yahoo '] = 2007;$ Arr ['baidu'] = 2008;Foreach ($ arr as $ key => $ val){//
Example of section nested loop usage of smarty, smartysection. The section nested loop usage example of smarty. This article describes the section nested loop usage of smarty. For your reference, the usage example of section neste
This article mainly introduces the example of PHP loop structure. for more information, see for loop statements.
Print pyramid
Complete pyramid
The code is as follows:
// Print the pyramid$ N = 25;For ($ I = 1; $ I // Space LoopFor ($ k = 1; $ k Echo '';}// Character loopFor ($ j = 1; $ j
If ($ I = 1 | $ I = $ n ){Echo '.';}Else {If ($ j = 1 | $ j = $ I * 2-1
For Loop example
For Loop Syntax:1for VARIABLE in 1 2 3 4 5 .. N2do3command14command25 commandN6 done
01
#! /Bin/bash0203foriin1 2 3 4 50405do0607 echo "Welcome $ I times"0809 done10
Bash version 3.0 +
#! /Bin/bash
For I in {1 .. 5}
Do
Echo "Welcome $ I times"
Done
Bash version 4
#! /Bin/bash
Echo "Bash version $ {BASH_VERSION }..."
For I in {0... 10... 2}
Do
In Pycharm, when editing a program, often the code is correct, but do not know where the error, here in the following example to illustrate the importance of code format in the Pycharm.
Title: Write a function, accept a positive even number as a parameter, output 2 prime numbers, and the sum of these 2 primes equals the original positive even, there are many groups of eligible primes, then all output.
Impo
1: The code is as follows://3.19.cpp: Defines the entry point of the console application. //#include"stdafx.h"#includeusing namespacestd;voidMain () {inti,n,sum; Sum=0; cout"Please enter a 10 integer"Endl; for(i=1; iTen; i++) {cout":" ; CIN>>N; if(n0)//determine if the input is negative Break; Sum+=n;//accumulate the number of inputs} cout"number of and:"Endl;}/*The program requires 10 numbers to be entered, and then calculates the and of
This article mainly introduces the usage of smarty loop nesting and analyzes the implementation skills and precautions of the Smarty template nested loop based on the instance form, for more information about smarty loop nesting, see the examples in this article. We will share this with you for your reference. The details are as follows:
Test3.php:
The sample
Oracle technology _ 5 minutes will use stored procedure _ simple example of stored procedure (including loop, condition, add and modify query, parameter input, variable assignment, java call, etc.), oracle_5
Example business functions:
1. query the data in PROCEDURE_TEST_A table and PROCEDURE_TEST_A_SUB table based on the input type A_TYPE and display the main co
optional else block attached, which is used primarily to handle the break statements contained in a for statement.
If the For loop is not terminated by a break, the statement in the else block is executed.
Break terminates the For loop when needed
Continue skips the following statement and starts the next round of loops.
The For statement is formatted as follows:
>>>for
.. if
.. break
.. if
...
output 5? The obvious answer is that printing a 5,1000ms immediately after almost simultaneous output of 5 5; why???As explained above, for a loop once, a Settimeou task is added to the task queue (the task is to execute a callback function after 1000ms), so the loop ends with 5 settimeou tasks in the Task list, and when the stack is empty in the main thread, the task list starts to stack , wait for 1000ms
PHP array is more commonly used, so I studied the PHP array loop operation, here to share with you, I hope to be useful. PHP is basically an array language. Often to do a large number of PHP array loop operation, there are two main ways, one is foreach, the other is while, in the end what kind of good what kind of bad has been arguing, although I have long been aware of this problem, but has been no scrutin
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