First look at a special case:
Var_dump (0 = = ' false '), returns BOOL (true), PHP determines 0 equals any string, Var_dump (0=== ' false '), returns BOOL (false), and the congruent contains type and value to be equal.
Var_dump (0 = false),
Workaround for Unserialize return False in PHP, Unserializefalse
In this article, we describe the solution of Unserialize return False in PHP, and share it for your reference. Here's how:
PHP provides serialize (serialization) and Unserialize
function luhn_checker($card_num,$sum){ .... return ?;
That is, you can return a bool value and return a value such as $sum, and the function needs to determine whether it is true or false
if(luhn_checker($card_num)){ }
Reply content:
return false prevents forms from being submitted today this problem has plagued me for a long time, looking for a lot of information on the Internet, basically about Onsubmit=return false has the following points to note:
1. Return returns the
Return false: the form cannot be submitted. This problem has plagued me for a long time. I have found a lot of information on the Internet. Basically, the following points should be noted about onsubmit = return false:1. For the return value problem,
Return false: Blocking form submission does not work. Today, this problem has plagued me for a long time. I have found a lot of information on the Internet. Basically, the following points should be noted about onsubmit = return false: 1. For the
Knowing the PHP curl_exec function, it is the execution of a given curl session. Returns TRUE if successful, or FALSE on failure.
Sometimes when PHP uses Curl requests, the page is blank and nothing is output. Debug Discovery Returns the result:
PHP provides serialize (serialization) and Unserialize (deserialization) methods. Once serialized using serialize, the original data can be obtained using unserialize deserialization. (Change the table structure or do the following)[PHP]View
Workaround for Unserialize return false in PHP
PHP provides serialize (serialization) and Unserialize (deserialization) methods.
Once serialized using serialize, the original data can be obtained using unserialize deserialization.
Let's take a look
Using file_get_contents on PHP CentOS to get the domain name on this computer will return FALSE for example, a CentOS server is bound with the domain name www.jitapu.me. Getting www.jitapu.me content in PHP will return false.
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