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PHP array

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  An array stores multiple values in one single variable. In PHP, the array() function is used to create an array. Example: <?php $pets = array ( "dog" , "cat" , "rabbit" ); echo $pets [ 0 ] . "," . $pets [ 1 ] . "," . $pets [ 2 ]; ?> Output: dog,cat,rabbit An array is a special variable, which can hold more than one value at a time. If you have a list of student names, storing the names in single variables could like this, $name1 = "Peter" $name2 = "Mickle" $name2 = "Bravo" However, what if you want to loop through the names and find a specific one? And what if you had 3 names, but 1000? The solution is to create an array . An array can hold many values under a single name, and you can access the values by referring to an index number. There are three different kind of arrays. Numeric array – Arrays with a numeric index Associative array – Arrays with named keys ...
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PHP explode function

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In this post, you’ll learn how to use the PHP explode() function. PHP explode() function returns an array of strings by splitting a string by a separator. The following shows the syntax of the PHP explode() function. Syntax: explode (separator, string , limit) separator - Required. Specifies where to break the string string – Required. The string to split limit – Optional. Specifies the number of array elements to return Possible Values Greater than 0 - Returns an array with a maximum of limit element(s) Less than 0 - Returns an array except for the last -limit element(s) 0 - Returns an array with one element Example: <?php $txt = "Welcome to PHP Coding Help." ; print_r ( explode ( " " , $txt )); ?> Output: Array ( [0] => Welcome [1] => to [2] => PHP [3] => Coding [4] => Help. ) Using the limit parameter to return a number of array elements: Example: <?php $str = 'red,blue,yell...
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Generate Secure Password Hashes

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PHP 5.5 introduced a simple and secure method for hashing and verifying passwords across password_hash() and password_verify() , respectively. These activities allow you to easily generate a secure hash using the most secure algorithm available to PHP. By utilizing the PASSWORD_DEFAULT option, your code will take advantage of whatever current encryption algorithm is considered most secure in that version of PHP, so there’s no need to worry about future-proofing. Syntax: <?php // Raw password, as entered by user $passwordOriginal = "leD4p?Qe5S" ; /* * Hash the password using the PASSWORD_DEFAULT algorithm. * Currently using the crypt() algorithm, but using PASSWORD_DEFAULT ensures future compatibility. * Database tables should accommodate a length of 255 characters for $passwordHash values */ $passwordHash = password_hash( $passwordOriginal , PASSWORD_DEFAULT); // Store in database. // Verify a password against the hash stored in the database with password_...
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