Php Print Array

An array is a collection of data that organizes a series of data to form an operational whole. Each entity in the array contains two keys and values. First, what is the array Array is a collection of data, a series of data organized together to form an operational whole. Each entity in the array contains two keys and values. Second, the statement data There are two main ways to declare an array in PHP: First, the array () function declaration array, one is directly assigned to the array element. Fei Fei Asp! Technology Paradise <1> array () function ...

This method is urgently needed to record what time to try ^^ In Linux, you can use the crontab + php method: 1, the use of crontab-e edit the contents of regular tasks: xx: xx: xx Execute a test.php File 2, php file must be in the first line of the file, with the interpreter path (as perl do) #! / Usr / local / bin / php PHP implementation requires Apache support, she ...

Article provides a php tutorial to detect the file type (based on the file header information) Oh, he can according to the user's header file information to confirm the type of file. <? php / * By file name, get the file type * * @ author chengmo * * @ copyright cnblog.com/chengmo 2010-10-17 * @ version 0.1 * $ filename = "d: /1.png"; ec. ..

Array_rand (PHP4 >= 4.0.0) array_rand---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Randomly select one or more values of an array syntax: Mixed array_rand (array input [, int num_req]) Description: Array_ran ...

Another case of the strtr function <? php tutorial echo strtr ("i love you", "love", "lovea");?> The result is i loves you Note that looking at the third argument a, Appear 4. I do not recommend using strtr less change ok, since this strtr function is very troublesome why ...

It would be faster to enclose the string in single quotes instead of double quotes. Because PHP searches for variables in double-quoted strings, single quotes do not. Note that only echo can do this: it's a "function" that takes multiple strings as arguments, Echo is a language structure, not a real function, so the function with double quotes). 1, if you can define the class method as static, as far as the definition of static, it will speed up nearly 4 times. 2, $ row ['id'] speed ...

2, system function <? Php $ test = "ls / tmp / test"; $ last = system ($ test); print "last: & ...

Extract (PHP3 >= 3.0.7, PHP4) array_extract---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; From the array input variable to the symbol table syntax: Void extract (array var_array, int [extract_type], Strin ...

In_array (PHP4) in_array---Search for the existence of values in the array: bool In_array (mixed needle, array haystack); Description: This function searches the array haystack to see if the parameter needle exists in the array, returns true if found in the array, or returns FALSE. Example: <?php &http://www.aliyun ...

Learn 10 basic knowledge of PHP Summary Read some of the basics of PHP, I summarize here: 1, embedded in the HTML PHP script there are three ways: The following is quoted content: <script language = "php"> / / embedded Way an echo ("test"); </ script> <? // embedded two echo "<br & g ...