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A regex to match a substring that isn't followed by a certain other substring
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162
Try:
/(?!.*bar)(?=.*foo)^(\w+)$/
Tests:
blahfooblah # pass
blahfooblahbarfail ...
What's the difference between using INDEX vs KEY in MySQL?
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edited Apr 4 '13 at 8:15
cmbuckley
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a...
Unix shell script to truncate a large file
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115
Just to add another answer,
: > filename
: is a no-op in bash (POSIX-compliant), so thi...
How to get the name of a class without the package?
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edited Jun 20 at 9:12
Community♦
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answered Apr 22 '10 at 11:31
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psql: FATAL: Peer authentication failed for user “dev”
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12 Answers
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how to use “AND”, “OR” for RewriteCond on Apache?
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120
This is an interesting question and since it isn't explained very explicitly in the documentat...
MySQL CONCAT returns NULL if any field contain NULL
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answered Apr 1 '13 at 10:01
John WooJohn Woo
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Cannot pass null argument when using type hinting
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PHP 7.1 or newer (released 2nd December 2016)
You can explicitly declare a variable to be null with this syntax
function foo(?Type $t) {
}
this will result in
$this->foo(new Type()); // ok
$this->foo(null); // ok
$this-&...
How to remove part of a string before a “:” in javascript?
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1 Answer
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What does “Receiver type 'CALayer' for instance message is a forward declaration” mean here?
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1 Answer
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