大约有 15,000 项符合查询结果（耗时：0.0230秒） [XML]
How can I recall the argument of the previous bash command?
... Also, if you want an arbitrary argument, you can use !!:1, !!:2, etc. (!!:0 is the previous command itself.) See gnu.org/software/bash/manual/bashref.html#History-Interaction
– janmoesen
Jul 30 '10 at 12:21
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Get table column names in MySQL?
...ick test, SHOW COLUMNS returns a table containing the column names, types, etc, while SELECT COLUMN NAME returns just the column names.
– mwfearnley
Jul 20 '16 at 16:30
add a ...
Migration: Cannot add foreign key constraint
...ed after running migrate:make. E.g. 2014_05_10_165709_create_student_table.php.
The solution was to rename the file with the foreign key to an earlier time than the file with the primary key as recommended here: http://forumsarchive.laravel.io/viewtopic.php?id=10246
I think I also had to add in $t...
Send POST data using XMLHttpRequest
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Use modern JavaScript!
I'd suggest looking into fetch. It is the ES5 equivalent and uses Promises. It is much more readable and easily customizable.
const url = "http://example.com";
fetch(url, {
method : "POST",
body: new FormData(document.getElementById("input...
PDO support for multiple queries (PDO_MYSQL, PDO_MYSQLND)
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As I know, PDO_MYSQLND replaced PDO_MYSQL in PHP 5.3. Confusing part is that name is still PDO_MYSQL. So now ND is default driver for MySQL+PDO.
Overall, to execute multiple queries at once you need:
PHP 5.3+
mysqlnd
Emulated prepared statements. Make sure PDO::ATTR_EM...
Add Text on Image using PIL
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To add text on an image file, just copy/paste the code below
<?php
$source = "images/cer.jpg";
$image = imagecreatefromjpeg($source);
$output = "images/certificate".rand(1,200).".jpg";
$white = imagecolorallocate($image,255,255,255);
$black = imagecolorallocate($image,7,94,94);
$font_siz...
How to send a PUT/DELETE request in jQuery?
... this question for more info on compatibility:
Are the PUT, DELETE, HEAD, etc methods available in most web browsers?
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Store JSON object in data attribute in HTML jQuery
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If the field contains the JSON from PHP encoding, you might just want to do this instead: htmlspecialchars(json_encode($e)) (idea from Nicolas answer comments).
– CPHPython
Jul 11 '18 at 17:10
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WhatsApp API (java/python) [closed]
...and fail more faster.
Popular chat platforms like Messenger, Slack, Skype etc. have happily (in the sense officially) provided APIs for bots to interact with, but WhatsApp has not yet provided any API.
However, since many years, a lot of activities has happened around this - struggle towards autom...
How to run a shell script on a Unix console or Mac terminal?
...er from the same folder, still using #!hashbang in scripts.
As example a php7.2 executable copied from /usr/bin is in a folder along a hello script.
#!./php7.2
<?php
echo "Hello!";
To run it:
./hello
Which behave just as equal as:
./php7.2 hello
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