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1. generate random hash in php in one l... generate random hash in php in one line code

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   /*

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   * x = hash lenght

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   */

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   substr(md5(openssl_random_pseudo_bytes(20)), $x);

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2. filter inputs with numbers only filter inputs with numbers only

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   <script>

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    var inputNumberElite = document.querySelectorAll('input[type="number"]');

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           for (var i = 0, len = inputNumberElite.length; i < len; i++) {

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               inputNumberElite[i].addEventListener("keypress", function(evt) {

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                   if (evt.which != 8 && evt.which != 0 && evt.which < 48 || evt.which > 57) {

3. List of public cars available in Ira... List of public cars available in Iran. لیست ماشین های عمومی موجود در ایران

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   <?php 

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   $car_list = array (

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     0 => '550 ام جی MG ',

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     1 => 'گریت وال H2هاوال',

4. cdn cdn Public

   JavaScript