PHP error message: Call-time pass-by-reference has been deprecated_PHP tutorial

Warning suddenly appeared when writing a reference today: Call-time pass-by-reference has been deprecated - argument passed by value; If you would like to pass it by reference, modify the declaration of getimagesize(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file. However, future versions may not support this any longer error, I later found out that the reason is that this method has been deprecated and is not available in PHP /Zend is likely to be no longer supported in future versions

Solution

The first method is to change the display_errors = on in php.ini to display_errors = off (do not display errors)

The second method, allow_call_time_pass_reference = Off becomes allow_call_time_pass_reference = On

The above is to modify php.ini, but if you do not have permission to modify the program, let me give a simple example below

Problems may occur

return;

The code is as follows

代码如下	复制代码
function test1($a,$b){ $b = "fun_test1"; return; } $a = "a_value"; $b = "b_value"; test1($a,&$b);

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function test1($a,$b){

代码如下	复制代码
function test2($a,&$b){ $b = "fun_test2"; return; } $a = "a_value"; $b = "b_value"; test2($a,$b);

$b = "fun_test1";

}

$a = "a_value"; $b = "b_value"; test1($a,&$b); No problems will arise

The code is as follows

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function test2($a,&$b){ $b = "fun_test2"; return; } $a = "a_value"; $b = "b_value"; test2($a,$b); http://www.bkjia.com/PHPjc/632128.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632128.htmlTechArticleWarning suddenly appeared when writing a reference today: Call-time pass-by-reference has been deprecated - argument passed by value; If you would like to pass it by reference, modify the declar...