PythonExecutor
    All categories
    PHPBeginner

    PHP Strings

    Master PHP string functions: measure length, change case, concatenate, replace, find, split, and join text.

    01String functions

    Try it Online
    main.php
    <?php
$s = "Hello, PHP";
echo strlen($s), "\n";
echo strtoupper($s), "\n";
echo strtolower($s), "\n";
    Output
    10
HELLO, PHP
hello, php

    02Concatenation

    Try it Online
    main.php
    <?php
$first = "Py";
$second = "thon";
echo $first . $second . "\n";
    Output
    Python

    03Replace and find

    Try it Online
    main.php
    <?php
$text = "I like cats";
echo str_replace("cats", "dogs", $text), "\n";
echo strpos($text, "like"), "\n";
    Output
    I like dogs
2

    04Split and join

    Try it Online
    main.php
    <?php
$csv = "red,green,blue";
$parts = explode(",", $csv);
echo $parts[1], "\n";
echo implode(" | ", $parts), "\n";
    Output
    green
red | green | blue