Compatibility issues encountered when migrating ECshop to PHP7 version

Recently, a netizen asked me about an error when installing ecshopv2.7.3 on PHP7. After a long time, I couldn’t find the reason. The editor of Script House will analyze the reasons for this problem.

On PHP7 When installing ECShop V2.7.3, an error message appears!

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; ECS has a deprecated constructor in /usr/local/nginx/html/ecshop/upload/includes/cls_ecshop. php on line 25

The reason for this error is that PHP7 no longer supports the construction method with the same name as the class. The construction method uniformly uses __construct(), such as the following writing method PHP7 This error will be reported.

<?php 
class foo { 
function foo() {
echo &#39;I am the constructor&#39;;
}
}
?>

Back to ecshop Let’s take a look at line 25 of the cls_ecshop.php file. As follows

Sure enough, there is a constructor with the same name as the class. We changed the constructor method ECS to __construct,

Go back to the ecshop installation homepage and refresh it, and find that there are no errors anymore.

Click next and report an error

Deprecated: Non-static method cls_image::gd_version() should not be called statically in /usr /local/nginx/html/ecshop/upload/install/includes/lib_installer.php on line 31

The reason for this error is static calling of non-static methods, such as the following The code will report this error

<?php 
class foo { 
function bar() {
echo &#39;I am not static!&#39;;
}
}
foo::bar(); 
?>

It is also very simple to modify the method, either change the method to a static method, or change the call to a non-static call. Let’s take a look at the 31 lines of code in the file lib_installer.php that reported the error

and the gd version() method of the cls image class file. We can see that it is indeed not used. static keyword

The first modification method is to modify the method to a static method and add the keyword public static

# before the method.

##The second modification method is to use non-static calling and modify the 31 lines of code of lib_installer.php

These two All methods can solve the problem. Returning to the second page of the ecshop installation steps, the error message has disappeared.

The next tragedy is that PHP7 does not support the original mysql api. PHP7 supports better Mysqli API and pdo_mysql api, so ecshop does not change the operation of mysql The api cannot run on PHP7.

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The above has shared with you the compatibility issues encountered when ECshop migrated to the PHP7 version. I hope it will be helpful to everyone.

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