PHP code example of dsheiko / validate

1. Go to this page and download the library: Download dsheiko/validate library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

dsheiko / validate example snippets



use \Dsheiko\Validate;

// Simple validation
$validate = new Validate();
$validate->IsString("hello")
         ->IsInt(42, ["min" => 0, "max" => 100])
         ->IsEmailAddress("[email protected]");

if (!$validate->isValid()) {
    foreach ($validate->getMessages() as $message) {
        echo $message . "\n";
    }
}

// Contract-based validation
Validate::contract([
    "email" => ["[email protected]", "IsEmailAddress"],
    "age" => [25, ["IsInt" => ["min" => 18, "max" => 120]]],
]);

// Map validation
Validate::map($data, [
    "username" => ["mandatory", "IsString" => ["minLength" => 3, "maxLength" => 20]],
    "email" => ["mandatory", "IsEmailAddress"],
    "age" => ["optional", "IsInt" => ["min" => 0, "max" => 150]],
]);



use \Dsheiko\Validate;

function login($email, $password)
{
    // Validate preconditions using contract
    Validate::contract([
        "email" => [$email, "IsEmailAddress"],
        "password" => [$password, ["IsString" => ["minLength" => 6, "maxLength" => 32, "notEmpty" => true]]],
    ]);
    
    // Perform login logic...
    
    // Validate postconditions if needed
    Validate::contract([
        "session_id" => [$sessionId, "IsUuid"],
    ]);
}



use \Dsheiko\Validate;

$formData = [
    "username" => "john_doe",
    "email" => "[email protected]",
    "password" => "secure_password",
    "age" => 28,
    "newsletter" => true,
];

Validate::map($formData, [
    "username" => ["mandatory", "IsString" => ["minLength" => 3, "maxLength" => 50]],
    "email" => ["mandatory", "IsEmailAddress"],
    "password" => ["mandatory", ["IsString" => ["minLength" => 8, "maxLength" => 128, "notEmpty" => true]]],
    "age" => ["optional", "IsInt" => ["min" => 0, "max" => 150]],
    "newsletter" => ["optional", "IsBool"],
    "phone" => ["optional", "IsString"],  // Not in data, optional - OK
]);



use \Dsheiko\Validate;

$validate = new Validate();
$validate->IsString("[email protected]")
         ->IsEmailAddress("[email protected]")
         ->IsString("password123")
         ->IsInt(25, ["min" => 18, "max" => 120]);

if (!$validate->isValid()) {
    // Handle validation errors
    $messages = $validate->getMessages();
}