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Find value in a multidimensional PHP array | 2023 Code Examples

Find a value in multidimensional PHP arrays code example function recursiveFunc($arr,$player_name = null) { foreach($arr as $key=>$value) { if($key == "Name") { $player_name = $value; } if(gettype($value) == "array") { //If array within array then recall the function. recursiveFunc($value,$player_name); } if($value == "Quarantine2k19") { echo "Player: ".$player_name." took part in the Quarantine2k19 tournament"; } } } //Call the function. recursiveFunc($players_arr); //OUTPUT //Player: Bond007 took part in the Quarantine2k19 tournament We have done articles related to array filtering by key and value. This article takes a step further and discovers various approaches to find value in multidimensional array PHP. A multidimensional array could be any level deeper, and that is often a challenge when we have to find a value that resides deep within an array. There are two approaches to go about this problem: Iterative and Recursive. The iterative approach uses nested loops to iterate over the levels of arrays…

How to Filter PHP arrays Before we get to the more complicated scenario of filtering arrays of objects by value, let's show how to do a PHP array filter in general. This is pretty simple to do using the array_filter function. You pass in the original array as the first parameter and then a function as the second parameter. The array_filter function uses the passed function on each element in the array to determine whether it should get returned. Anything returned truthy (not null or false) will get pushed into the new filtered array. Check out the example below to quickly filter an array in PHP by value. PHP array_filter Code Example // Let's setup a scenario where we need to filter an array by values with cows. $sampleArray = [0 => "horse", 1 => "cow", 2 => "pig", 3 => "cow"]; $filteredArray = array_filter( $sampleArray, function($val){ return $val ===…

Filter Array of Objects PHP Code Example The following code snippet is a quick way to filter array of objects by key using the array_filter function. We recommend using the method for most array filtering use cases. Feel free to use this snippet and then follow along for more explanation. <?php // Dummy data just to populate function. // I'm creating a json string as its an efficient way to create an array of objects. // You can ignore this part and replace $objectsArray with your array. $content = '[{"type": "cat", "name": "charles"}, {"type": "dog", "name": "sam"}}, {"type": "donkey": "name": "frank"}]'; $objectsArray = json_decode($content); //Array_filter to filter objects with cat as type // This is where the work is done. $filtered_arr = array_filter( $objectsArray, function($key){ return $key === 0; }, ARRAY_FILTER_USE_KEY); //Gets the filtered array. print_r($filtered_arr); /* OUTPUT Array ( [0] => stdClass ( [name] => charles [type] => cat…

PHP Code to Convert Associative Array to CSV File $f = fopen('employees.csv', 'a'); // Configure fopen to create, open, and write data. fputcsv($f, array_keys($employees_array[0])); // Add the keys as the column headers // Loop over the array and passing in the values only. foreach ($employees_array as $row) { fputcsv($f, $row); } // Close the file fclose($f); PHP has built-in functions that can help to convert an array to csv in PHP. PHP File handling module provides useful functions for creating, updating, and deleting different types of files. A Comma-separated file or CSV is one of the most important file formats, and some native PHP functions help us work with these files. These functions are. fopen (Opens a file) fputcsv (Writes to a CSV) fclose (Closes a file) Let’s first review these functions as they are building blocks of what we’ll see in the upcoming example. PHP fopen - array to…

How to Concat Strings in PHP to Combine Multiple Strings Together I use several methods for concatenating strings in PHP. The dot operator is the standard method for combining multiple strings together. Sometimes, I also need PHP concat arrays. I use the implode function in these cases. Check out the examples below to learn more about joining & combining PHP strings together. Concat String Code Example: Combine & Append 2 or More Strings to Form a New String // Here's a few quick ways to append to strings in php. // let's setup the base string. $myString = "Start with one string"; // Let's do a quick concatenation example. $myString = $myString . " and add 2nd string. "; // Let's show another way to append and concatenate a string in PHP $myString .= " Here's a 3rd string added. "; // What if we have another variable string that…

How to Get the Length of an Array in PHP PHP provides two identical functions whenever you need to get the length of an array. The count function is the most common method. You can also use the sizeOf function as it is just an alias of the count. I prefer the count function and would recommend avoiding the sizeOf function. PHP Count Function Code Example <?php //An array with many elements. $arr = array("PHP","Javascript","Python","Java","C#","C++"); //Let's count this array using the count function and print it to console. echo "Length of \$arr is: ".count($arr); //OUTPUT //Length of $arr is: 6 ?> Counting Arrays in PHP An array is a data structure to store multiple elements. Like any programming language, PHP provides helpful functions to work with arrays. We have seen many array functions in previous articles. One common array operation is to determine its length, which is the number of…

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Section: craftsmanship

Find value in a multidimensional PHP array | 2023 Code Examples

Filter Array of Objects by Value: 5 PHP Code Examples in 2023

Filter Array of Objects by Key: 5 PHP Code Examples (2023)

Convert PHP Associative Array to CSV File: 5 Code Examples

Join & Append PHP Strings: Concatenation Code Examples (2023)

Array Length in PHP: Use the Count Function with Code Examples