摘要：
Echo The simplest use of echo is to print a string as argument, for example: echo “This will print in the user’s browser window.”; Or equivalently: echo(“This will print in the... 阅读全文
摘要：
PHP has a total of eight types: integers, doubles, Booleans, strings, arrays, objects, NULL, andresources.✦Integers are whole numbers, without a decimal point, like 495. ✦ Doubles are floating-point n... 阅读全文
