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Safely remove migration In Laravel
...anna add little more information.
A new feature has been added to Laravel 5.3 and above version that will allow you to back out a single migration:
php artisan migrate:rollback --step=1
after, Manually delete the migration file under database/migrations/my_migration_file_name.php
This is a grea...
How does the Windows Command Interpreter (CMD.EXE) parse scripts?
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Phase 5) Delayed Expansion: Only if delayed expansion is enabled
Phase 5.3) Pipe processing: Only if commands are on either side of a pipe
Phase 5.5) Execute Redirection:
Phase 6) CALL processing/Caret doubling: Only if the command token is CALL
Phase 7) Execute: The command is executed
H...
VIP会员中心 · App Inventor 2 中文网，少儿编程陪伴者
... 电教馆的网站AI伴侣2.2x版本，平台版本过旧，很多aix拓展无法运行，文档也是过旧的英文原版，参考意义不大。 中文网于 2023/12/02 同步过一次MIT最新代码（参考发布日志）...
Remove portion of a string after a certain character
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If you're using PHP 5.3+ take a look at the $before_needle flag of strstr()
$s = 'Posted On April 6th By Some Dude';
echo strstr($s, 'By', true);
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How can I convert ereg expressions to preg in PHP?
Since POSIX regular expressions (ereg) are deprecated since PHP 5.3.0, I'd like to know an easy way to convert the old expressions to PCRE (Perl Compatible Regular Expressions) (preg) .
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Replace comma with newline in sed on MacOS?
...ris 10 (SunOS 5.10) and RHE Linux (Red Hat Enterprise Linux Server release 5.3, Tikanga)...
$ sed 's/{pattern}/\^J/g' foo.txt > foo2.txt
... where the ^J is done by doing ctrl+v+j. Do mind the \ before the ^J.
PS, I know the sed in RHEL is GNU, the MacOS sed is FreeBSD based, and although I'm...
Solution for “Fatal error: Maximum function nesting level of '100' reached, aborting!” in PHP
...problem. I just commented this line:
zend_extension = "d:/wamp/bin/php/php5.3.8/zend_ext/php_xdebug-2.1.2-5.3-vc9.dll
in my php.ini file. This extension was limiting the stack to 100 so I disabled it. The recursive function is now working as anticipated.
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How to Create Multiple Where Clause Query Using Laravel Eloquent?
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In Laravel 5.3 (and still true as of 7.x) you can use more granular wheres passed as an array:
$query->where([
['column_1', '=', 'value_1'],
['column_2', '<>', 'value_2'],
[COLUMN, OPERATOR, VALUE],
...
])
Pe...
How to delete a file via PHP?
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unlink(dirname(__FILE__) . "/../../public_files/" . $filename);
(in PHP 5.3 I believe you can use the __DIR__ constant instead of dirname() but I've not used it myself yet)
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No Exception while type casting with a null in java
...l reference can always be assigned or cast to any reference type (§5.2, §5.3, §5.5).
If the reference is null, it is converted to the string "null" (four ASCII characters n, u, l, l).
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