PHP View the current variable type method _php instance

The following PHP to view the current variable type background, procedures and solutions are written out for everyone, as follows:

Solve the background

Toss process one:

Resolved the JSON Json_decode in PHP does not work without any output

Period, you need to understand one:

Copy Code code as follows:

Php:curl_exec–manual

Curl_exec returns the type of variable $respjson and is not a string type.

Toss process two:

1. Search:

Copy Code code as follows:

PHP Check Variable type

Reference:

Php:gettype–manual

Php:is_string–manual

Php:is_int–manual

So go and try:

Copy Code code as follows:

$respJson = $crifanLib->geturlresphtml ($GETTOKENURL);
$crifanLib->logwrite ("respjson=%s", $respJson);
Echo GetType ($respJson);
echo is_string ($respJson);
echo "Before Decodedjsonobj";
$DECODEDJSONOBJ = Json_decode ($respJson);

Results:

There is no output ...

2. Try:

Copy Code code as follows:

Echo GetType ($respJson);
echo is_string ($respJson);

Results:

Copy Code code as follows:

Output: String1

That proves that the type of the variable here is indeed string.

Summarize

The type of variable obtained in PHP is GetType ($var);

Individual judgments are of some type and can be used:

Copy Code code as follows:

Is_int
Is_string

Wait a minute.

The above is for PHP to view the current variable types of methods, I hope you like.