PHP – Check if array is empty To check if an array is empty or not in PHP, we can use count() function. count() function can be used to find the length of an array. If the length of an array is zero, then the array is empty. The syntax of the condition to check if an arr...
Solution: Example: [php]<?php function multi_array_search($search_for, $search_in) { foreach ($search_in as $element) { if ( ($element === $search_for) || (is_array($element) && multi_array_search($search_for, $element)) ){ return true; } } return false; } $arr = array...
The PHP array_key_exists() function checks if a specific key exists in the array. The function returns TRUE if the key is present, else it returns FALSE. array_key_exists() function works for both indexed arrays and associative arrays. For indexed arrays, index is the key. Syntax of arr...
function isCheck(arr) { for (let i = 0; i < arr.length; i++) { if (arr[i] === 0) { arr[i] = 'zero'; } else if (arr[i] % 2 === 0) { arr[i] = 'even'; } else { arr[i] = 'odd'; } } return arr; } 上述代码中,我们遍历了数组arr中的每个元素,并根据特...
PHP Exercises, Practice and Solution: Write a PHP program to check if the value of each element is equal or greater than the value of previous element of a given array of integers.
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public Gender\Gender::isNick ( string $name0 , string $name1 [, int $country ] ) : array Check whether the name0 is a nick of the name1. 参数 name0 Name to check. name1 Name to check. country Country id identified by Gender class constant. If ommited ANY_COUNTRY is used. 返...
php //获取用户IP function getIp() { $ip = ""; if (getenv('HTTP_CLIENT_IP') && strcasecmp(getenv(...,"*","",'"',"|",",","'");//使用时请删除屏蔽 return str_replace($s,"",$filename); } //PHP判断数组维度 //...获取随机序列(注:实测数字最好9位一下) //echo random(9...
If the return is not an object, the string we gave is not JSON. This is the principal of Method 1 function. function isJSON($string){ return is_string($string) && is_array(json_decode($string, true)) ? true : false; } Method 2 Requires PHP versions 5.3 or more. function isJSON...
C# Sharp Code: usingSystem;publicclassExample41{publicstaticvoidMain(){// Declare an array of stringsString[]strings={"Actions speak louder than words","Hello!","Python.","PHP.","random"};// Iterate through each string in the arrayforeach(varvalueinstrings){// Check if the string ends...