大约有 40,000 项符合查询结果(耗时:0.0211秒) [XML]
What is the ideal data type to use when storing latitude / longitude in a MySQL database?
...
FYI; Mysql support spatial index only with *.myisam tables, i.e. the ISAM engine. Link: dev.mysql.com/doc/refman/5.0/en/creating-spatial-indexes.html
– PodTech.io
Jan 15 '17 at 5:46
...
PHP function overloading
...um_args() and func_get_arg() to get the arguments passed, and use them normally.
For example:
function myFunc() {
for ($i = 0; $i < func_num_args(); $i++) {
printf("Argument %d: %s\n", $i, func_get_arg($i));
}
}
/*
Argument 0: a
Argument 1: 2
Argument 2: 3.5
*/
myFunc('a', 2, 3...
relative path in require_once doesn't work
...
Note that you should manually include the trailing slash in after __DIR__. So: require_once(__DIR__.'/../class/user.php'); Per the documentation, the trailing slash is omitted except for the root directory.
– Ariel Allon
...
Way to get all alphabetic chars in an array in PHP?
...ion for such applications.
chr(x) returns the ascii character with integer index of x.
In some cases, this approach should prove most intuitive.
Refer http://www.asciitable.com/
$UPPERCASE_LETTERS = range(chr(65),chr(90));
$LOWERCASE_LETTERS = range(chr(97),chr(122));
$NUMBERS_ZERO_THROUGH_NINE = r...
How to calculate the difference between two dates using PHP?
...ferred way of doing this is like described by jurka below. My code is generally only recommended if you don't have PHP 5.3 or better.
Several people in the comments have pointed out that the code above is only an approximation. I still believe that for most purposes that's fine, since the usage of...
PHP - how to best determine if the current invocation is from CLI or web server?
...
A small caveat about this method: it will not return "cli" when run from a cron job. There's a number od differents keys to choose from inside of $_SERVER to determine more reliably whether the request came via HTTP or not.
...
How to get URL of current page in PHP [duplicate]
...e - the former has the path to the actual script, the latter has the originally requested path.
– Amber
Aug 16 '09 at 2:19
1
...
Getter and Setter?
...
That's not really setter and getter. Typically I need for each property different implementation of getter!
– sumid
Feb 16 '13 at 0:59
...
Php multiple delimiters in explode
...
preg_split returns indexed array. It possible to return associative? For example $str='/x/1/2/3/4/5/y/100/200/z/777'; preg_split("/(x|y|z|)/", $str); and to see array('x'=>'1/2/3/4/5', 'y'=>'100/200', 'z'=>'777')
...
How can I remove a key and its value from an associative array?
.../php.net/manual/en/function.array-diff.php
To remove an element by using index:
array_splice($arr, 1, 1);
var_dump($arr);
// array(1) { ["key3"]=> string(6) "value3" }
read more about array_splice: http://php.net/manual/en/function.array-splice.php
...
