php 7.2 一些注意事项php
php 7.2 一些注意事项...
each 函数 在php7.2已经设定为过时:
<?php $b = array(); each($b); // Deprecated: The each() function is deprecated. This message will be suppressed on further calls
count 函数在php7.2将严格执行类型区分. 不正确的类型传入, 会引发一段警告:
<?php count(''); // Warning: count(): Parameter must be an array or an object that implements Countable
create_function 函数在php7.2已经设定为过时:
<?php $newfunc = create_function('$a,$b', 'return "ln($a) + ln($b) = " . log($a * $b);'); echo "New anonymous function: $newfunc\n"; echo $newfunc(2, M_E) . "\n"; // outputs // New anonymous function: lambda_1 // ln(2) + ln(2.718281828459) = 1.6931471805599 // Warning This function has been DEPRECATED as of PHP 7.2.0. Relying on this function is highly discouraged.
解决方法:
替代each:
function fun_adm_each(&$array){ $res = array(); $key = key($array); if($key !== null){ next($array); $res[1] = $res['value'] = $array[$key]; $res[0] = $res['key'] = $key; }else{ $res = false; } return $res; }
替代count:
function fun_adm_count($array_or_countable,$mode = COUNT_NORMAL){ if(is_array($array_or_countable) || is_object($array_or_countable)){ return count($array_or_countable, $mode); }else{ return 0; } }
替代create_function:
<?php $fun = function ($str ){echo $str} $fun('Yuan');
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