Notes on Post upload of PHP study notes

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Today I originally wanted to use Postman Simulating POST to upload a set of Json data to the server, it turns out that the server cannot accept the uploaded data.

Server code:

<?php
	echo "<pre class="brush:php;toolbar:false">";
	var_dump($_POST);
	var_dump($_REQUEST);
	echo "

"; ?>

PostMan code:

POST /api.php/API/fish_woter_monitoring_add HTTP/1.1
Host: shrimp.cqjufy.com
Content-Type: application/json
Cache-Control: no-cache
Postman-Token: 356cd424-c710-2d33-ffa7-29157f939c56


{"SensorData": [{"equipment_ID": "20180418","PH_value": "7.28","oxygen_value": "5.03","temperature_value": "21.4"}]}

It turns out that the server never receives data.

Everyone after Baidu recommends using php://input to read

file_get_contents('php://input')

You can also use $GLOBALS['HTTP_RAW_POST_DATA'] to obtain POST native data, but the official recommendation is to use php ://input instead;

$GLOBALS['HTTP_RAW_POST_DATA']

The difference between the three:

$_POST 、$HTTP_RAW_POST_DATA、php://input三者之间的区别

HTTP_RAW_POST_DATA

1.Need to set the in php.ini always_populate_raw_post_data will only take effect if the value is On

2.Requires more memory than php://input

##php://input

cannot be used for enctype="multipart/ form-data"

#$_POST

1.Unable to parse content of non-application/x-www.form-urlencoded data types such as text/xml, application/json, etc.

##2.It has been verified that it cannot be used for enctype="text/plain"

3. When the Content-Type of the HTTP POST request is application/x-www-form -urlencoded or multipart/form-data, the variables will be passed into the current script in the form of an associative array.

related suggestion:

PHP software configuration for PHP learning

##php study notes object-oriented_php basics

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