How can I sort arrays and data in PHP?

> This question is intended as a reference for questions about sorting arrays in PHP. It is easy to think that your particular case is unique and worthy of a new question, but most are actually minor variations of one of the solutions on this page. > > If your question is closed as a duplicate of this one, please ask for your question to be reopened only if you can explain why it differs markedly from all of the below. How do I sort an array in PHP? How do I sort a *complex* array in PHP? How do I sort an array of objects in PHP? ---------- 1. [Basic one-dimensional arrays; Incl. Multidimensional arrays, incl. arrays of objects; Incl. Sorting one array based on another](https://stackoverflow.com/a/17364128/476) 2. [Sorting with SPL](https://stackoverflow.com/a/17364468/476) 3. [Stable sort](https://stackoverflow.com/a/17365409) For the practical answer using PHP's existing functions see 1., for the academic in-detail answer on sorting algorithms (which PHP's functions implement and which you *may* need for really, really complex cases), see 2.