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Easy way to test a URL for 404 i<em>nem> PHP?

I'm teachi<em>nem>g myself some basic scrapi<em>nem>g <em>a<em>nem>dem> I've fou<em>nem>d that sometimes the URL's that I feed i<em>nem>to my code retur<em>nem> 404, which gums up all the rest of my code. ...
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How to get the last char of a stri<em>nem>g i<em>nem> PHP?

...o get the last character of a stri<em>nem>g. Say I have "testers" as i<em>nem>put stri<em>nem>g <em>a<em>nem>dem> I wa<em>nem>t the result to be "s". how ca<em>nem> I do that i<em>nem> PHP? ...
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How to obtai<em>nem> the last path segme<em>nem>t of a URI

... I was searchi<em>nem>g for <em>A<em>nem>dem>roid's <em>a<em>nem>dem>roid.<em>nem>et.Uri (<em>nem>ot java.<em>nem>et.URI) <em>a<em>nem>dem> e<em>nem>ded up here. If you're usi<em>nem>g that i<em>nem>stead, there's a method there called getLastPathSegme<em>nem>t() which should do the same thi<em>nem>g. :) – pm_labs ...
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How ca<em>nem> I stop redis-server?

... Either co<em>nem><em>nem>ect to <em>nem>ode i<em>nem>sta<em>nem>ce <em>a<em>nem>dem> use shutdow<em>nem> comm<em>a<em>nem>dem> or if you are o<em>nem> ubu<em>nem>tu you ca<em>nem> try to restart redis server through i<em>nem>it.d: /etc/i<em>nem>it.d/redis-server restart or stop/start it: /etc/i<em>nem>it.d/redis-server stop /etc/i<em>nem>it.d/redis-server start O<em>nem> Mac...
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pydot <em>a<em>nem>dem> graphviz error: Could<em>nem>'t import dot_parser, loadi<em>nem>g of dot files will <em>nem>ot be p<em>osem>sible

....1: The i<em>nem>compatibility of (upstream) pydot has bee<em>nem> fixed by 6dff94b3f1, <em>a<em>nem>dem> thus pydot &gt;= 1.1 will be compatible with pyparsi<em>nem>g &gt;= 1.5.7. A<em>nem>swer applicable to pydot &lt;= 1.0.28: For a<em>nem>yo<em>nem>e else who comes acr<em>osem>s this, it is due to the cha<em>nem>ges i<em>nem> pyparsi<em>nem>g from 1.x to the 2.x release. To...
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What's the effect of addi<em>nem>g 'retur<em>nem> false' to a click eve<em>nem>t liste<em>nem>er?

... The retur<em>nem> value of a<em>nem> eve<em>nem>t h<em>a<em>nem>dem>ler determi<em>nem>es whether or <em>nem>ot the default browser behaviour should take place as well. I<em>nem> the case of clicki<em>nem>g o<em>nem> li<em>nem>ks, this would be followi<em>nem>g the li<em>nem>k, but the differe<em>nem>ce is m<em>osem>t <em>nem>oticeable i<em>nem> form submit h<em>a<em>nem>dem>lers, whe...
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How to extract the <em>nem>-th eleme<em>nem>ts from a list of tuples?

... <em>a<em>nem>dem> use **dict to create keyword argume<em>nem>ts: def test(foo=3, bar=3): retur<em>nem> foo*bar the<em>nem> d = {'bar': 9, 'foo'=12}; pri<em>nem>t test(**d) – Way<em>nem>e Wer<em>nem>er Jul 22 '10 at 12:58 ...
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Co<em>nem>verti<em>nem>g HTML files to PDF [cl<em>osem>ed]

... say the real problem with Flyi<em>nem>g Saucer is that it requires a well-formed <em>a<em>nem>dem> valid XML docume<em>nem>t. It's easy to u<em>nem>witti<em>nem>gly break the PDF re<em>nem>deri<em>nem>g by i<em>nem>cludi<em>nem>g somethi<em>nem>g like a<em>nem> ampers<em>a<em>nem>dem> i<em>nem> your HTML, or some javascript code that makes your re<em>nem>dered HTML <em>nem>ot strict XHTML. Though this ca<em>nem> be mitiga...
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Why is std::map impleme<em>nem>ted as a red-black tree?

...bly the two m<em>osem>t commo<em>nem> self bala<em>nem>ci<em>nem>g tree algorithms are Red-Black trees <em>a<em>nem>dem> AVL trees. To bala<em>nem>ce the tree after a<em>nem> i<em>nem>sertio<em>nem>/update both algorithms use the <em>nem>otio<em>nem> of rotatio<em>nem>s where the <em>nem>odes of the tree are rotated to perform the re-bala<em>nem>ci<em>nem>g. While i<em>nem> both algorithms the i<em>nem>sert/delete operat...
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Xcode sudde<em>nem>ly stopped ru<em>nem><em>nem>i<em>nem>g project o<em>nem> hardware: “Could <em>nem>ot lau<em>nem>ch xxx.app: .. <em>Nem>o such file..” [c

...able to ru<em>nem> my app, it started directly after I deleted it from the device <em>a<em>nem>dem> attempted to re-i<em>nem>stall by reru<em>nem><em>nem>i<em>nem>g it i<em>nem> Xcode (somethi<em>nem>g I've do<em>nem>e hu<em>nem>dreds of times before). ...