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解决 App Inventor 2 Runtime Error运行时错误的专业指南 - App Inventor 2...
...Inventor 开发应用程序时，运行时错误是开发者经常遇到的问题。这些错误可能源于不同的原因，如组件配置
引言
在使用 MIT App Inventor 开发应用程序时，运行时错误是开发者经常遇到的问题。这些错误可能源于不同的原因，...
解决 App Inventor 2 Runtime Error运行时错误的专业指南 - App Inventor 2...
...Inventor 开发应用程序时，运行时错误是开发者经常遇到的问题。这些错误可能源于不同的原因，如组件配置
本文系ChatGPT根据提示生成，更多请参考《AppInventor2 Runtime Error 运行时错误，无详细信息的定位技巧》
引言
在使用 M...
How to remove part of a string? [closed]
... If one needs regex matching there is also preg_replace() us2.php.net/manual/en/function.preg-replace.php
– Elijah Lynn
Jul 11 '13 at 17:34
4
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How can I store my users' passwords safely?
... MD5 ? I've just started looking into password security. I'm pretty new to PHP.
6 Answers
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Best way to initialize (empty) array in PHP
...creation and instantiation. I wonder whether there are any equivalences in PHP?
8 Answers
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Is there a way to use shell_exec without waiting for the command to complete?
...
How about adding.
"> /dev/null 2>/dev/null &"
shell_exec('php measurePerformance.php 47 844 email@yahoo.com > /dev/null 2>/dev/null &');
Note this also gets rid of the stdio and stderr.
share
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Do AJAX requests retain PHP Session info?
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If PHP error reporting is turned on, you can get a session error returned with the AJAX response. I've been intermittently getting a Warning: session_write_close(): Failed to write session data (user) error lately in a project, ...
Checking if an instance's class implements an interface?
... "Yes!";
}
class_implements() is part of the SPL extension.
See: http://php.net/manual/en/function.class-implements.php
Performance Tests
Some simple performance tests show the costs of each approach:
Given an instance of an object
Object construction outside the loop (100,000 iterations)
_...
PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
... Please, take a look at mb_detect_encoding source code in your php distro (somewhere here: ext/mbstring/libmbfl/mbfl/mbfl_ident.c). This function does not work properly at all. For some encodings it even has "return true", lol. Others are in Ctrl+c Ctrl+v functions. That's because you ca...
How to convert array values to lowercase in PHP?
How can I convert all values in an array to lowercase in PHP?
10 Answers
10
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