How do I convert a string to a number in PHP?

I want to convert these types of values, '3', '2.34', '0.234343', etc. to a numb

Corrin

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asked 07 September, 2021

How to fix "Headers already sent" error in PHP

Dario

0 1 0 9

asked 07 September, 2021

How to check if PHP array is associative or sequential?

PHP treats all arrays as associative, so there aren't any built in functions. Can anyone recommend a fair

Gigi

0 1 0 9

asked 07 September, 2021

What is thread safe or non-thread safe in PHP?

I saw different binaries for PHP, like non-thread or thread safe? What does this mean? What is the differen

Basil

0 1 0 9

asked 07 September, 2021

What is the difference between single-quoted and double-quoted strings in PHP?

I'm a little confused why I see some code in PHP with string placed in single quotes and sometimes in dou

Jeff

0 1 0 9

asked 07 September, 2021

Convert a PHP object to an associative array

I'm integrating an API to my website which works with data stored in objects while my code is written usi

Jeff

0 1 0 9

asked 07 September, 2021

Remove empty array elements

Some elements in my array are empty strings based on what the user has submitted. I need to remove those eleme

Lynette

0 1 0 9

asked 07 September, 2021

PHP random string generator

I'm trying to create a randomized string in PHP, and I get absolutely no output with this: <?php

Janella

0 1 0 9

asked 07 September, 2021

How do I get the current date and time in PHP?

Which PHP function can return the current date/time?

Lynette

0 1 0 9

asked 07 September, 2021

How can I do &apos;insert if not exists&apos; in MySQL?

I started by googling and found the article How to write INSERT if NOT EXISTS queries in standard SQL which ta

Bryan

0 1 0 9

asked 07 September, 2021

Where can I find php.ini?

A few years ago I installed Apache 2.2x and PHP 5.3.1 on a Linux server I maintain. I used .tar.gz's and

Omar

0 1 0 9

asked 07 September, 2021

Get the full URL in PHP

Sachiko

0 1 0 9

asked 07 September, 2021

mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc... expects parameter 1 to be resource

I am trying to select data from a MySQL table, but I get one of the following error messages: mysql_fetch_

Boyd

0 1 0 9

asked 07 September, 2021

Returning JSON from a PHP Script

I want to return JSON from a PHP script. Do I just echo the result? Do I have to set the Content-Type header?

Gigi

0 1 0 9

asked 07 September, 2021

PHP array delete by value (not key)

I have a PHP array as follows: $messages = [312, 401, 1599, 3, ...]; I want to delete the element containin

Serina

0 1 0 9

asked 07 September, 2021

Detecting request type in PHP (GET, POST, PUT or DELETE)

How can I detect which request type was used (GET, POST, PUT or DELETE) in PHP?

Omar

0 1 0 9

asked 07 September, 2021

How do I use PHP to get the current year?

I want to put a copyright notice in the footer of a web site, but I think it's incredibly tacky for the y

Renaldo

0 1 0 9

asked 07 September, 2021

What is the difference between public, private, and protected?

When and why should I use public, private, and protected functions and variables inside a class? What is the d

Nidia

0 1 0 9

asked 07 September, 2021

What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?

I have tried reading some articles, but I am not very clear on the concepts yet. Would someone like to take a

Wei

0 1 0 9

asked 07 September, 2021

How do I expire a PHP session after 30 minutes?

I need to keep a session alive for 30 minutes and then destroy it.

Hildegard

0 1 0 9

asked 07 September, 2021