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PHP - Modify StringsPHP has a set of built-in functions that you can use to modify strings. Upper Case ExampleGet your own PHP Server The strtoupper() function returns the string in upper case: $x = "Hello World!"; echo strtoupper($x); Try it Yourself » Lower Case Example The strtolower() function returns the string in lower case: $x = "Hello World!"; echo...0 Комментарии 0 Поделились 8Кб Просмотры 0 предпросмотр
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PHP - Slicing StringsSlicing You can return a range of characters by using the substr() function. Specify the start index and the number of characters you want to return. ExampleGet your own PHP Server Start the slice at index 6 and end the slice 5 positions later: $x = "Hello World!"; echo substr($x, 6, 5); Try it Yourself » Note The first character has index 0. Slice to the...
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PHP StringsA string is a sequence of characters, like "Hello world!". Strings Strings in PHP are surrounded by either double quotation marks, or single quotation marks. ExampleGet your own PHP Server echo "Hello"; echo 'Hello'; Try it Yourself » Note There is a big difference between double quotes and single quotes in PHP. Double quotes process special characters, single quotes...0 Комментарии 0 Поделились 6Кб Просмотры 0 предпросмотр
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PHP NumbersIn this chapter we will look in depth into Integers, Floats, and Number Strings. PHP Numbers There are three main numeric types in PHP: Integer Float Number Strings In addition, PHP has two more data types used for numbers: Infinity NaN Variables of numeric types are created when you assign a value to them: ExampleGet your own PHP Server $a = 5; $b = 5.34; $c = "25";...0 Комментарии 0 Поделились 7Кб Просмотры 0 предпросмотр